Publications

2017

M-G. Han, J. Garlow, M. Marshall, A.Tiano, S. Wong, S-W Cheong, F. Walker, C. Ahn, Y. Zhu, Electron-beam-induced-current and active secondary-electron voltage-contrast with aberration-corrected electron probes. Ultramicroscopy 176, 80, 2017. DOI: 10.1016/j.ultramic.2017.03.028

D. Roy, S. Davidovitch, Y-M. Hung, M. Schultz, S. Albright, M. Morales-Acosta, F. Walker, J. Reiner, C. Ahn, Andrew. Kent, and L. Klein. Field tuning of domain-wall type and chirality in SrRuO3.Physical Review B 95(22), 224437, 2017. DOI: 10.1103/PhysRevB.95.224437

S. Koohfar, A. S. Disa, M. S. J. Marshall, F. J. Walker, C. H. Ahn, and D. P. Kumah, Structural distortions at polar manganite interfaces. Physical Review Letters B 96(2), 024108, 2017. DOI: 10.1103/PhysRevB.96.024108

A. Disa, A. Georgescu, J. Hart, D. Kumah, P. Shafer, E. Arenholz, D. Arena, S. Ismail-Beigi, M. Taheri, F. Walker, and C. Ahn, Control of hidden ground-state order in NdNiO3 superlattices. Physical Review Materials 1(2), 024410, 2017. DOI: 10.1103/PhysRevMaterials.1.024410

L. Kornblum,D. P. Fenning, J. Faucher, J. Hwang,A. Boni,M. G. Han, M. D. Morales-Acosta, Y. Zhu,E. I. Altman, M. L. Lee, C. H. Ahn, F. J. Walker, and Y. Shao-Horn, Solar hydrogen production using epitaxial SrTiO3 on a GaAs photovoltaic. Energy & Environmental Science 10, 377, 2017. DOI: 10.1039/c6ee03170f

P. Phillips, X. Rui, A. Georgescu, A. Disa, P. Longo, E. Okunishi, F. Walker, C. Ahn, S. Ismail-Beigi, and R. Klie, Experimental verification of orbital engineering at the atomic scale: Charge transfer and symmetry breaking in nickelate heterostructures. Physical Review B 95(20), 205131, 2017. DOI: 10.1103/PhysRevB.95.205131

O. Dagdeviren, C. Zhou, K. Zou, G. Simon, S. Albright, S. Mandal, M. Morales-Acosta, X. Zhu, S. Ismail-Beigi, F. Walker, C. Ahn, U. Schwarz, and E. Altman, Length Scale and Dimensionality of Defects in Epitaxial SnTe Topological Crystalline Insulator Films. Advanced Materials Interfaces 4(2), 1601011, 2017. DOI: 10.1002/admi.201601011

Ngai. J., Ahmadi-Majlan. K., Moghadam. J., Chrysler. M., Kumah. D., Ahn. C, Walker. F.,  Droubay. T., Bowden. M., Chambers. S., Shen. X., and Su. D. Electrically Coupling Multifunctional Oxides to Semiconductors: A Route to Novel Material Functionalities. Materials Research Advances 32(2), 249, 2017. DOI: 10.1557/adv.2016.101


2016

L. Kornblum,D. P. Fenning, J. Faucher, J. Hwang,A. Boni,M. G. Han, M. D. Morales-Acosta, Y. Zhu,E. I. Altman, M. L. Lee, C. H. Ahn,F. J. Walker, and Y. Shao-Horn, Solar hydrogen production using epitaxial SrTiO3 on a GaAs photovoltaic. Energy & Environmental Science. 2016. DOI: 10.1039/c6ee03170f

G. Fabbris, D. Meyers, J. Okamoto, J. Pelliciari, A. S. Disa, Y. Huang, Z.-Y. Chen, W. B. Wu, C. T. Chen, S. Ismail-Beigi, C. H. Ahn, F. J. Walker, D. J. Huang, T. Schmitt, and M. P. M. Dean, Orbital Engineering in Nickelate Heterostructures Driven by Anisotropic Oxygen Hybridization rather than Orbital Energy Levels. Physical Review Letters.,  117(14), 147401, 2016. DOI: 10.1103/PhysRevLett.117.147401.

M-G Han, J. Garlow, M. Bugnet, S. Divilov, M. Marshall, L. Wu, M. Dawber, M. Fernandez-Serra, G. Botton, S-W. Cheong, F. Walker, C. Ahn, and Y. Zhu. Coupling of bias-induced crystallographic shear planes with charged domain walls in ferroelectric oxide thin films. Physical Review B 94(10), 100101(R), 2016.
DOI: 10.1103/PhysRevB.94.100101

E. Jin, L. Kornblum, C. Ahn, and F. Walkera, Integrating 2D electron gas oxide heterostructures on silicon using rare-earth titanates. MRS Advances, 1(4), 287, 2016. DOI: 10.1557/adv.2016.95

K. Zou, S. Mandal, S. Albright, R. Peng, Y. Pu, D. Kumah, C. Lau, G. Simon, O. Dagdeviren, X. He, I. Božović, U. Schwarz, E. Altman, D. Feng, F. Walker, S. Ismail-Beigi, and C. Ahn, Role of double TiO2 layers at the interface of FeSe/SrTiO3 superconductors. Phys. Rev. B 93, 180506(R), 2016.
DOI: 10.1103/PhysRevB.93.180506

O. Dagdeviren, G. Simon, K. Zou, F. J. Walker, C. Ahn, E. Altman, and U. Schwarz, Surface Phase, Morphology, and Charge Distribution Transitions on Vacuum and Ambient Annealed SrTiO3(100). Physical Review B, 93, 195303, 2016. DOI: 10.1103/PhysRevB.93.195303

D. Kumah, M. Dogan, J. Ngai, D. Qiu, Z. Zhang, D. Su, E. D. Specht, S. Ismail-Beigi, C.  Ahn, and F. Walker. Engineered Unique Elastic Modes at a BaTiO3/(2×1)−Ge(001) Interface. Physical Review Letters,  116, 106101, 2016. DOI: 10.1103/PhysRevLett.116.106101

Z. Wang, D. Morales-Acosta, S. Li, W. Liu, T. kanai, Y. Liu,Y-N. Chen, F. Walker, C. Ahn, R. Leblanc and   E. Yan.  A Narrow Amide I Vibrational Band Observed by Sum Frequency Generation Spectroscopy Reveals Highly Ordered Structures of a Biofilm Protein at the Air/Water Interface. Chem. Commun., 52, 2956, 2016. DOI: 10.1039/C5CC05743D


2015

K. Zou, S. Ismail-Beigi, K. Kisslinger, X. Shen, D. Su, F. J. Walker, and C. Ahn, LaTiO3/KTaO3 interfaces: A new two-dimensional electron gas system. APL Materials, 3, 036104, 2015. DOI: 10.1063/1.4914310

X. Zhu, M. D. Morales-Acosta, J. Shen, F. J. Walker, J. Cha, and E.  Altman, The Growth, structure, and electronic properties of nonpolar thin films on a polar substrate: Cr2O3 on ZnO (0001) and ZnO (000-1). Physical Review B, 92, 165414, 2015. DOI: 10.1103/PhysRevB.92.165414

L. Kornblum, D. Morales-Acosta, E. Jin, C. Ahn, and F. Walker. Transport at the Epitaxial Interface between Germanium and Functional Oxides. Advanced Materials Interfaces. DOI: 10.1002/admi.201500193

L. Kornblum, E. Jin, O. Shoron, M. Boucherit, S. Rajan, C. Ahn, and F. Walker, Electronic transport of titanate heterostructures and their potential as channels on (001) Si. J. Appl. Phys. 118, 105301, 2015. DOI: 10.1063/1.4930140

M. Herdiech, X. Zhu, D. Morales-Acosta, F. Walker and E. Altman. The modification of ferroelectric LiNbO3(0001) surfaces using chromium oxide thin films. Phys. Chem. Chem. Phys, 14(17), 9488, 2015. DOI: 10.1039/C4CP05875E

C. A. F Vaz, F. Walker, C. Ahn, and S Ismail-Beigi, Intrinsic interfacial phenomena in manganite heterostructures. J. Phys.: Condens. Matter 27, 123001, 2015. DOI: 10.1088/0953-8984/27/12/123001

A. Disa. D. Kumah, A. Malashevich, H. Chen, D. Arena, E. Specht, S. Ismail-Beigi, F. Walker, and C. Ahn, Orbital engineering in symmetry-breaking polar heterostructures. Physical Review Letters 114, 026801, 2015. DOI:10.1103/PhysRevLetters114.026801

A. Disa, F. Walker, S. Ismail-Beigi, and C. H. Ahn. Research Update: Orbital polarization in LaNiO3-based heterostructures.  APL Mater. 3, 062303, 2015. DOI: 10.1063/1.4921456

S. Ismail-Beigi, F. Walker, SW. Cheong, KM. Rabe, and C. H. Ahn, Alkaline earth stannates: The next silicon? APL Mat., 3, 062510, 2015. DOI: 10.1063/1.4921338

L. Kornblum, E. N. Jin, D. P. Kumah, A. T. Ernst, C. C. Broadbridge, C. H. Ahn, and Fred J. Walker,
Oxide 2D electron gases as a route for high carrier densities on (001) Si. Appl. Phys. Lett., 106, 201602, 2015. DOI: 10.1063/1.4921437

K. Galatsis, C. Ahn, I. Krivorotov, P. Kim, R. Lake, K. Wang, J. Chang, A Material Framework for Beyond CMOS Devices. IEEE Journal on Exploratory Sold-State Computational Devices and Circuits, 1, 27, 2015. DOI: 10.1109/JXCDC.2015.2424832

M-G Han, M.  S. J. Marshall, L. Wu, F. J. Walker, C. H. Ahn, and Y. Zhua, In Situ Electron Holography of Ferroelectric Thin Films. Microscopy and Microanalysis, 21, S3, 1401, 2015. DOI: 10.1017/S1431927615007783


2014

W.H.P. Pernice, C. Xiong, F. Walker and H.X. Tang, Design of a silicon integrated electro-optic modulator using ferroelectric BaTiO3 thin films. IEEE Photonics Technology Letters, 99, 1, 2014.
DOI: 10.1109/LPT.2014.2322501

J. Hoffman, M. S. J. Marshall, C. H. Ahn and L. Klein, Out of plane anisotropic magnetoresistance and planar Hall effect in epitaxial film of La0.8Sr0.2MnO3. J. Appl. Phys. 115, 053709, 2014.
DOI: 10.1063/1.4863854

D. P. Kumah, A. S. Disa, J. H. Ngai, H. Chen, A. Malashevich, J. W. Reiner, S. Ismail-Beigi, F. J. Walker and C. H. Ahn, Tuning the structure of nickelates to achieve two-dimensional electron conduction. Advanced Materials, 26(12), 1935, 2014. DOI: 10.1002/adma.201304256, (2014).

J. H. Ngai, D. P. Kumah, C. H. Ahn and F. J. Walker, Hysteretic electrical transport in BaTiO3/Ba1-xSrxTiO3/Ge heterostructures. Applied Physics Letters, 104(6), 062905, 2014.
DOI: 10.1063/1.4864648

C. Xiong, W. Pernice, J. Ngai, J. Reiner, D. Kumarh, F. Walker, C. Ahn and H. Tang, Active silicon integrated nanophotonics: ferroelectric BaTiO3 devices. Nano Letters, 14(3), 1419, 2014. DOI: 10.1021/nl404513p

J. Ngai, F. Walker and C. Ahn, Correlated Oxide Physics and Electronics. Annual Review of Materials Research, 44(1), 2014. DOI: 10.1146/annurev-matsci-070813-113248

Shen, Y. Jung, A. S. Disa, F. J. Walker, C. H. Ahn, and J. J. Cha, Synthesis of SnTe Nanoplates with {100} and {111} Surfaces. Nano Lett, 14(7), 4183, 2014. DOI: 10.1021/nl501953s

A. F. Vaz, J. A. Moyer, D. A. Arena, C. H. Ahn, and V. E. Henrich, Magnetic and electronic structure of ultrathin La1−xSrxMnO3 films at half doping. Phys. Rev., B 90, 024414, 2014.
DOI: 10.1103/PhysRevB.90.024414

D.H. Kim, N.M. Aimon, X.Y. Sun, L. Kornblum, F.J. Walker, C.H. Ahn and C.A. Ross, Integration of Self-Assembled Epitaxial BiFeO3-CoFe2O4 Multiferroic Nanocomposites on Silicon Substrates. Adv. Fun. Mat., 24(37), 2014. DOI: 10.1002/adfm.201401458

H. Chen, Q. Qiao, M. Marshall, A. Georgescu, A. Gulec, P. Phillips, R. Klie, F. Walker, C. Ahn, and S. Ismail-Beigi, Reversible Modulation of Orbital Occupations via an Interface-Induced Polar State in Metallic Manganites. Nano Lett, 14 (9), 4965, 2014. DOI: 10.1021/nl501209p

MG Han, M. Marshall, L. Wu, M. Schofield, T. Aoki, R. Twesten, J. Hoffman, F. Walker, C. Ahn, and Y. Zhu, Interface-induced nonswitchable domains in ferroelectric thin films. Nature Communications 5, Article number: 4693, 2014. DOI: 10.1038/ncomms5693

M. Marshall, A. Malashevich, A. Disa, MG. Han, H. Chen, Y. Zhu, S. Ismail-Beigi, F. Walker, and C. Ahn, Conduction at a Ferroelectric Interface. Phys. Rev. Applied., 2, 051001, 2014.
DOI: 10.1103/PhysRevApplied.2.051001

D. Kumah, A. Malashevich, A. Disa, D. Arena, F. Walker, S. Ismail-Beigi, and C. Ahn, Effect of Surface Termination on the Electronic Properties of LaNiO3 Films. Phys. Rev. Applied., 2, 054004, 2014.
DOI: 10.1103/PhysRevApplied.2.054004

E. Jin, L. Kornblum, D. Kumah, K. Zou, C. Broadbridge, J. Ngai, C. Ahn and F. Walker, A high density two-dimensional electron gas in an oxide heterostructure on Si (001). APL Materials ., 2, 116109, 2014. DOI: 10.1063/1.4902433

J. Ngai, F. Walker and C. Ahn, Correlated Oxide Physics and Electronics. Annual Review of Materials Research 44, 1, 2014. DOI: 10.1146/annurev-matsci-070813-113248

Ivan Bozovic and Charles Ahn, A new frontier for superconductivity. Nature Physics, 10, 892, 2014.
DOI: 10.1038/nphys3177


2013

A. S. Disa, D. P. Kumah, J. H. Ngai, E. D. Specht, D. A. Arena, F. J. Walker, and C. H. Ahn, Phase diagram of compressively strained nickelate thin films. APL Materials, 1(3), 032110, 2013. DOI:10.1063/1.4820431

H. Chen, D. P. Kumah, A. S. Disa, F. J. Walker, C. H. Ahn, and S. Ismail-Beigi, Modifying the Electronic Orbitals of Nickelate Heterostructures via Structural Distortions. Physical Review Letters, 110(18), 186402, 2013. DOI: 10.1103/PhysRevLett.110.186402

N. Naftalis, Y. Shperber, J. A. Moyer, C. H. Ahn, and L. Klein, Thickness dependence of the resistivity tensor in epitaxial magnetite thin films. Journal of Applied Physics, 114(4), 043701, 2013.
DOI: 10.1063/1.4816399


2012

N. Naftalis, N. Haham, J. Hoffman, M. S. Marshall, C. H. Ahn, and L. Klein, Angular dependence of the Hall effect of La0.8Sr0.2 MnO3 films. Physical Review B, 86(18), 184402, 2012.
DOI: 10.1103/PhysRevB.86.184402

J. R. Kirtley, B. Kalisky, J. A. Bert, C. Bell, M. Kim, Y. Hikita, H. Y. Hwang,  J. H. Ngai, Y. Segal, F. J. Walker, C. H. Ahn, and K. A. Moler. Scanning SQUID susceptometry of a paramagnetic superconductor. Physical Review B, 85(22): 224518, 2012. DOI: 10.1103/PhysRevB.85.224518

X. Hong, K. Zou, A. M. DaSilva, C. H. Ahn, and J. Zhu, Integrating functional oxides with grapheme. Solid State Communications, 152(15), 1365, 2012. DOI: 10.1016/j.ssc.2012.04.050

M. S. Marshall, D. P. Kumah, J. W. Reiner, A. P. Baddorf, C. H. Ahn, and F. J. Walker, Piezoelectric force microscopy of crystalline oxide-semiconductor heterostructures. Applied Physics Letters, 101(10), 102902-102902, 2012. DOI: 10.1063/1.4750243

A. Sambri, D. Isarakorn, A. Torres-Pardo, S. Gariglio, Pattanaphong Janphuang, D. Briand, O. Stephan, J. W. Reiner,J.-M. Triscone, N. F. de Rooij, and C. H. Ahn. Epitaxial Piezoelectric Pb (Z r0. 2 T i0. 8) O3 Thin Films on Silicon for Energy Harvesting Devices.  Smart Materials Research, 426048, 2012.
DOI: 10.11552012/426048

P. Paruch, A. B. Kolton, X. Hong, C. H. Ahn, and T. Giamarchi, Thermal quench effects on ferroelectric domain walls. Physical Review B, 85(21), 214115. 2012. DOI: 10.1103/PhysRevB.85.214115


2011

D. Isarakorn, D. Briand, A. Sambri, S. Gariglio, J. -M. Triscone, F. Guy, J. W. Reiner, C. H. Ahn, and N. F. de Rooij, Finite element analysis and experiments on a silicon membrane actuated by an epitaxial PZT thin film
for localized-mass sensing applications
. Sensors and Actuators, B: Chemical, 153(1), 54, 2011.
DOI: 10.1016/j.snb.2010.10.009

D. Isarakorn, D. Briand, P. Janphuang, A. Sambri, S. Gariglio, J. -M. Triscone, F. Guy, J. W. Reiner, C. H. Ahn, and N. F. de Rooij, The realization and performance of vibration energy harvesting MEMS devices based on an epitaxial piezoelectric thin film. Smart Materials and Structures 20(2), 025015, 2011.
DOI: 10.1088/0964-1726/20/2/025015

D. Su, Q. Meng, C. A. F. Vaz, M.-G. Han, Y. Segal, F. J. Walker, M. Sawicki, C. Broadbridge, and C. H. Ahn, Origin of 90 degree domain wall pinning in Pb(Zr0.2Ti0.8)O3 heteroepitaxial thin films. Appl. Phys. Lett., 99(10), 102902, 2011. DOI: 10.1063/1.3634028

Y. Segal, K. F. Garrity, C. A. F. Vaz, J. D. Hoffman, F. J. Walker, S. Ismail-Beigi, and C. H. Ahn. Dynamic evanescent phonon coupling across the La1-xSrxMnO3/SrTiO3. interface. Phys. Rev. Lett., 107(10), 105501, 2011. DOI: 10.1103/PhysRevLett.107.105501

B.R. Lukanov, J.W. Reiner, F.J. Walker, C.H. Ahn, and E.I. Altman, Formation of alkaline-earth template layers on Ge(100) for oxide heteroepitaxy: Self-organization of ordered islands and trenches.  Phys. Rev B., 84, 075330, 2011. DOI: 10.1103/PhysRevB.84.075330

C. A. F. Vaz and C. H. Ahn, Ferroelectric Field Effect Control of Magnetism in Multiferroic Heterostructures. In M. Lallart (Ed.), Ferroelectrics - Physical effects, p.329-346. Intech, 2011. DOI: 10.5772/20401

C. A. F. Vaz, J. Hoffman, Y. Segal, M. S. J. Marshall, J. W. Reiner, Z. Zhang, R. D. Grober, and F. J. Walker, C. H. Ahn,  Control of magnetism in Pb(Zr0.2Ti0.8O3/La0.8Sr0.2MnO3 multiferroic heterostructures. J. Appl. Phys., 109(7), 07D905, 2011. DOI: 10.1063/1.3540694

J. Hoffman, X. Hong, and C. H. Ahn, Device performance of ferroelectric/correlated oxide heterostructures for non-volatile memory applications. Nanotechnology, 22(25), 254014. 2011. DOI: 10.1088/0957-4484/22/25/254014

J. H. Ngai, Y. Segal, F. J. Walker, and C. H. Ahn, Electrostatic modulation of anisotropic magnetotransport in Ar+-irradiated SrTiO3: Effects of boundary scattering. Physical Review B, 83(4), 045304, 2011.
DOI: 10.1103/PhysRevB.83.045304

N. Naftalis, A. Kaplan, M. Schultz, C. A. F. Vaz, J. A. Moyer, C. H. Ahn, and L. Klein, Field-dependent anisotropic magnetoresistance and planar Hall effect in epitaxial magnetite thin films. Physical Review B, 84(9), 094441, 2011. DOI: 10.1103/PhysRevB.84.094441

A. Sambri, S. Gariglio, A. T. Pardo, J. M. Triscone, O. Stephan, J. W. Reiner, C. H. and Ahn, Enhanced critical temperature in epitaxial ferroelectric Pb (Zr0. 2Ti0. 8) O3 thin films on silicon. Applied Physics Letters, 98(1), 012903, 2011. DOI: 10.1063/1.3532110


2010

A. F. Vaz, J. Hoffman, Y. Segal, J. W. Reiner, R. D. Grober, Z. Zhang, C. H. Ahn, F. J. Walker, Origin of the magnetoelectric effect in Pb(Zr0.2Ti0.8)O3/La0.8Sr0.2MnO3  multiferroic heterostructures. Phys. Rev. Lett., 104, 127202, 2010.  DOI: 10.1103/PhysRevLett.104.127202

D. Isarakorn, A. Sabri, P. Janphuang, D. Briand, S. Gariglio, J.-M. Triscone, F. Guy, J. W. Reiner, C. H. Ahn, and N. F. de Rooij, Epitaxial piezoelectric MEMS on silicon. Journal of Micromechanics and Microengineering, 20, 055008, 2010. DOI: 10.1088/0960-1317/20/5/055008

D. Su, B. Yang, N. Jiang, M. Sawicki, C. Broadbridge, M. Couillard, J. W. Reiner, F. J. Walker, C. H. Ahn, and Y. Zhu, Valence electron energy-loss spectroscopy of ultrathin SrTiO3 films grown on silicon (001) single crystal. Applied Physics Letters. 96, 121914, 2010. DOI: 10.1063/1.3364144

Y. Segal, J. W. Reiner, Z. Zhang, C. H. Ahn, and F. J. Walker, The morphology of epitaxial SrTiO3/Si (001) determined using 3D diffraction profile analysis. Journal of Vacuum Science and Technology B., 28, C5B1, 2010. DOI: 10.1116/1.3420394

A. F. Vaz, J. Hoffman, C. H. Ahn, and R. Ramesh, Magnetoelectric coupling effects in multiferroic complex oxide composite structures. Advanced Materials, 22, 2900, 2010. DOI: 10.1002/adma.200904326

K. F. Garrity, M. Padmore, Y. Segal, J. W. Reiner, F. J. Walker, C. H. Ahn, and S. Ismail-Beigi, Phase transition of Sr on Si (001): first-principles prediction and experiment. Surface Science, 604, 857, 2010. DOI: 10.1016/j.susc.2010.02.011

J. H. Ngai, T. C. Schwendemann, A. E. Walker, Y. Segal, F. J. Walker, E. I. Altman, and C. H. Ahn, Achieving A-site termination on La0.18Sr0.82Al0.59Ta0.41O3 substrates. Advanced Materials, 22(26-27), 2945, 2010. DOI: 10.1002/adma.200904328J.

Hoffman, X. Pan, J. W. Reiner, F. J. Walker, J. P. Han, C. H. Ahn, and T. P. Ma, Ferroelectric field effect transistors for memory applications. Advanced Materials, 22(26-27), 2919, 2010.
DOI: 10.1002/adma.200904327

Ø. Nordseth, C. You, E. Folven, S. Gariglio, A. Sambri, J. M Triscone, J. W. Reiner, C. H. Ahn, T.  Tybell, and J. K. Grepstad, Growth and characterization of (Pb,La)(Zr,Ti)O3 thin film epilayers on SrTiO3-buffered Si(001). Thin Solid Films, 518(19), 5471, 2010. DOI: 10.1016/j.tsf.2010.04.023

J. W. Reiner, A. M. Kolpak, Y. Segal, K. F. Garrity, S. Ismail-Beigi, C. H. Ahn, and F. J. Walker, Crystalline oxides on silicon. Advanced Materials 22(26-27), 2919, 2010. DOI: 10.1002/adma.200904306

J.H. Ngai, Y. Segal, D. Su, Y. Zhu, F.J. Walker, S. Ismail-Beigi, K. Le Hur, and C.H. Ahn, Electric field tuned crossover from classical to weakly localized quantum transport in electron doped SrTiO3. Physical Review B Rapid Communications, 81, 241307, 2010. DOI: 10.1103/PhysRevB.81.241307

J. W. Reiner, S. Cui, Z. Liu, M. Wang, C. H. Ahn, and T. P. Ma, Inelastic electron tunneling spectroscopy study of thin gate dielectrics. Advanced Materials, 22(26-27), 2962, 2010. DOI: 10.1002/adma.200904311

L. Klein, C. Dubourdieu, M. M. Frank, V. Narayanan, S. Guha, J. Hoffman, J. W. Reiner, and C. H. Ahn, Domain dynamics in PZT films studied by piezoelectric force microscopy. Journal of Vacuum Science and Technology B, 28, C5A20, 2010. DOI: 10.1116/1.3442802

A. F. Vaz, J. Hoffman, Y. Segal, F. J. Walker, and C. H. Ahn. Electrostatic control of magnetism in all-oxide multiferroic heterostructures. Proc. of SPIE, 7760:776013, 2010. DOI: 10.1117/12.861070

C. A. F. Vaz, Y. Segal, J. Hoffman, R. D. Grober, F. J. Walker, and C. H. Ahn. Temperature dependence of the magnetoelectric effect in Pb(Zr0.2Ti0.8)O3/La0.8Sr0.2MnO3 multiferroic heterostructures. Appl. Phys. Lett., 97, 042506, 2010. DOI: 10.1063/1.3472259

C. A. F. Vaz, Y. Segal, J. Hoffman, F. J. Walker, and C. H. Ahn. Growth and characterization of PZT/LSMO multiferroic heterostructures. J. Vac. Sci. Technol B., 28, C5A6, 2010. DOI: 10.1116/1.3427140

A. M. Kolpak, F. J. Walker, J. W. Reiner, Y. Segal, D. Su, M. S. Sawicki, C. C. Braodbridge, Z. Zhang, Y. Zhu, and C. H. Ahn, and S. Ismail-Beigi, Interface-induced polarization and inhibition of ferroelectricity in epitaxial SrTiO3/Si. Phys. Rev. Lett., 105, 217601, 2010. DOI: 10.1103/PhysRevLett.105.21760.  (Editor’s highlight).

D.P. Kumah, J.W. Reiner, Y. Segal, A.M. Kolpak, Z. Zhang, D. Su, Y. Zhu, M.S. Sawicki, C.C. Broadbridge, C.H. Ahn, and F.J. Walker, The atomic structure and polarization of strained SrTiO3/Si. Appl. Phys. Lett. 97, 251902, 2010. DOI: 10.1063/1.3529460

D. Isarakorn, D. Briand, P. Janphuang, A. Sambri, S. Gariglio, J. -M. Triscone, F. Guy, J. W. Reiner, C. H. Ahn, and N. F. de Rooij, Energy harvesting MEMS device based on an epitaxial PZT thin film: fabrication and characterization. Proc. of the PowerMEMS 2010 Conference, pp. 203-206 Leuven, 2010


2009

J.W. Reiner, F.J. Walker, C.H. Ahn, Atomically Engineered Oxide Interfaces. Science, 323(5917), 1018, 2009. DOI: 10.1126/science.1169058

Y. Segal, J.W. Reiner, A.M. Kolpak, Z. Zhang, S. Ismail-Biegi, C.H. Ahn, and F.J. Walker, Atomic structure of the epitaxial BaO/Si(001) interface. Phys. Rev. Lett., 102(11), 11610, 2009
DOI: 10.1103/PhysRevLett.102.116101

X. Hong, A. Posadas, K. Zou, C.H. Ahn, and J. Zhu, High-Mobility Few-Layer Graphene Field Effect Transistors Fabricated on Epitaxial Ferroelectric Gate Oxides. Phys. Rev. Lett. 102, 136808.
DOI: 10.1103/PhysRevLett.102.136808

H. J. A. Molegraaf, J. Hoffman,  C. A. F. Vaz, S. Gariglio, D. van der Marel, C. H. Ahn, and J.-M. Triscone, Magnetoelectric effects in complex oxides with competing ground states. Advanced Materials, 21(34), 3470, 2009. DOI: 10.1002/adma.200900278

C. A. F. Vaz, V. E. Henrich, C. H. Ahn, and E. I. Altman, Growth and characterization of thin epitaxial Co3O4(111) films. Journal of Crystal Growth, 311(9), 2648, 2009. DOI:10.1016/j.jcrysgro.2009.03.006

C. A. F. Vaz, C. H. Ahn, and V. E. Henrich. Spin-polarisation effects in oxide materials. In A. Hirohata and Y. Otani, editors. Epitaxial ferromagnetic films and spintronic applications, p.145-185. Research Signpost, 2009. ISBN 978-81-308-0319-7

C. A. F. Vaz, H. Wang, C. H. Ahn, V. E. Henrich, M. Z. Baykara, T. Schwendemann, N. Pilet, B. J. Albers, U. D. Schwarz, L. H. Zhang, and Y. Zhu, J. Wang, E. I. Altman, Interface and electronic characterization of thin epitaxial Co3O4 films. Surface Science, 603(2): 291, 2009. DOI: 10.1016/j.susc.2008.11.022

E. Iyyamperumal, F.  Fang, A. Posadas, C. Ahn, R. Klie, Y. Zhao,  G. Haller and L. Pfefferle, Synthesis of Uniform Diameter Boron-Based Nanostructures Using a Mesoporous Mg−Al2O3 Template and Tests for Superconductivity. J. Phys. Chem C., 113(41), 17661, 2009. DOI: 10.1021/jp904304t

C.A. F. Vaz, J. Hoffman, A.-B. Posadas, C. H. Ahn, Magnetic anisotropy Modulation of magnetite in Fe3O4/BaTiO3(100) epitaxial structures. Appl. Phys. Lett., 94, 022504, 2009. DOI: 10.1063/1.3069280

Y. Bason, J. Hoffman, C.H. Ahn, L. Klein, Magnetoresistance tensor of La0.8Sr0.2MnO3. Phys. Rev B., 79(9), 092406, 2009. DOI: 10.1103/PhysRevB.79.092406

J. W. Reiner, Y. Segal, K. F. Garrity, H. Hong, S. Ismail-Beigi, C. H. Ahn, and F. J. Walker, Diffraction studies of submonolayer Sr structures on the Si (001) surface. J. Vac. Sci. Technol B., 27, 2015, 2009.
DOI: 10.1116/1.3139866

J. W. Reiner, A. Posadas, M. Wang, M. Sidorov, Z. Krivokapic, F. J. Walker, T. P. Ma, and C. H. Ahn, Electrical properties and interfacial structure of epitaxial LaAlO3 on Si (001). J. Appl. Phys., 105, 124501, 2009. DOI: 10.1063/1.3148243

N. Naftalis, Y. Bason, J. Hoffman, X. Hong, and C. H. Ahn, and L. Klein, Anisotropic magnetoresistance and planar Hall effect in epitaxial films of La0.7Ca0.3MnO3. J. Appl. Phys., 106, 023916, 2009. DOI: 10.1063/1.3176934

Y. Segal, J.H. Ngai, J.W. Reiner, F.J. Walker, and C.H. Ahn, X-ray photoemission studies of the metal-insulator transition in LaAlO3/SrTiO3 structures grown by molecular beam epitaxy. Phys. Rev. B., 80, 241107(R), 2009. DOI: 10.1103/PhysRevB.80.241107 (Editor’s highlight)


2008

J.W. Reiner, A. Posadas, M. Wang, T.P. Ma, and C.H. Ahn, Growth and structural properties of crystalline LaAlO3 on Si (001).  Microelectronic Engineering., 85(1), 36, 2008.
DOI: 10.1016/j.mee.2007.07.004

A. Posadas, F.J. Walker, C.H. Ahn, T.L. Goodrich, Z. Cai, and K.S. Ziemer, Epitaxial MgO as an alternative gate dielectric for SiC transistor applications. Appl. Phys. Lett., 92, 233511 2008. DOI: 10.1063/1.2944865

J.W. Reiner, K.F. Garrity, F.J. Walker, S. Ismail-Beigi, and C.H. Ahn, The role of strontium in oxide epitaxy on silicon (001). Phys. Rev. Lett., 101(10), 105503, 2008. DOI: 10.1103/PhysRevLett.101.105503

P. Paruch, A. Posadas, M. Dawber, C.H. Ahn, and P.L. McEuen, Polarization switching using single-walledcarbon nanotubes grown on epitaxial ferroelectric thin films. Appl. Phys. Lett., 93, 132901, 2008.
DOI: 10.1063/1.2985815

D.G. Schlom and C.H. Ahn, Clear leap for superconductors. Nature, 456, 582, 2008. DOI: 10.1038/456582a

D. Isarakorn, D.  Briand, S. Gariglio, A. Sambri, N. Stucki, J. –M. Triscone, F.  Guy, S. -H. Baek,  C.-B.  Eom, and J. W. Reiner, Establishement of a technology platform for epitaxial piezoelectric MEMS. Eurosensors XXII, Dresden, Germany, pp. 819, 2008.

D. Isarakorn, D. Briand, S. Gariglio, A. Sambri, N. Stucki, J.-M. Triscone, F. Guy, J.W. Reiner, C.H. Ahn, N.F. de Rooij, A study on epitaxial piezoelectric thin films grown on silicon for energy scavenging applications. Proceedings of PowerMEMS 2008+ microEMS2008, Sendai, Japan, November 9-12, 1, 269, 2008.
 


2007

J.-B. Yau, X. Hong, A. Posadas, C.H. Ahn, W. Gao, E. Altman, Y. Bason, L. Klein, M. Sidorov, and Z. Krivokapic, Anisotropic magnetoresistance in colossal magnetoresistive La1-xSrxMnO3 thin films. J. Appl. Phys., 102, 103901, 2007. DOI: 10.1063/1.2811919

K. M. Rabe, C.H. Ahn, and J.-M. Triscone, Physics of Ferroelectrics: A Modern Perspective, eds. (Springer-Verlag, Heidelberg, 2007).

Y. Bason, L. Klein, H. Wang, J.D. Hoffman, X. Hong, V. Henrich, and C.H. Ahn, Planar Hall effect in epitaxial thin films of magnetite.  J. Appl. Phys., 101, 09J507, 2007. DOI: 10.1063/1.2712053.

C. Lichtensteiger, M. Dawber, N. Stucki, J.-M. Triscone, J. Hoffman, J.-B. Yau, C.H. Ahn, L. Despont, P. Aebi, Monodomain to polydomain transition in ferroelectric PbTiO3 thin films with La0.67Sr0.33MnO3 electrodes. Appl. Phys. Lett., 90, 052907, 2007. DOI: 10.1063/1.2433757

K.M. Rabe, M. Dawber, C. Lichtensteiger, C.H. Ahn, and J.-M. Triscone, Modern Physics of Ferroelectrics: Essential Background, in Physics of Ferroelectrics: A Modern Perspective.

K.M. Rabe, C.H. Ahn, and J.-M. Triscone, eds. (Springer-Verlag, Heidelberg, 2007), pp. 1-30. DOI: 10.1007/978-3-540-34591-6_1

A. Posadas, M. Lippmaa, F.J. Walker, M. Dawber, C.H. Ahn, and J.-M. Triscone, Growth and Novel Applications of Epitaxial Oxide Thin Films, in Physics of Ferroelectrics: A Modern Perspective, K.M. Rabe, C.H. Ahn, and J.-M. Triscone, eds. (Springer-Verlag, Heidelberg, 2007), pp. 219-304. DOI: 10.1007/978-3-540-34591-6_6


2006

T.C. Kaspar, T. Droubay, V. Shutthanandan, S.M. Heald, C.M. Wang, D.E. McCready, S. Thevuthasan, J.D. Bryan, D.R. Gamelin, A.J. Kellock, M.F. Toney, X. Hong, C.H. Ahn, and S.A. Chambers, Ferromagnetism and structure of epitaxial Cr-doped anatase TiO2 thin films. Phys. Rev B., 73(15), 155327, 2006. DOI: 10.1103/PhysRevB.73.155327

Y. Bason, L. Klein, J.-B. Yau, X. Hong, J. Hoffman, and C.H. Ahn, Planar Hall Effect magnetic random access memory. J. Appl. Phys., 99, 08R701, 2006. DOI: 10.1063/1.2162824

A. Posadas, J.-B. Yau, C.H. Ahn, Epitaxial multiferroic hexagonal manganite thin films grown on ZnO. Physica Status Solidi b, 243(9), 2085, 2006. DOI: 10.1002/pssb.200666820

X. Hong, J.-B. Yau, J.D. Hoffman, C.H. Ahn, Y. Bason, L. Klein, The effect of electric field effect doping on the anisotropic magnetoresistance in doped manganites. Phys. Rev B., 74(17), 174406, 2006. DOI: 10.1103/PhysRevB.74.174406

C.H. Ahn, A. Bhattacharya, M. Di Ventra, J.N. Eckstein, C. Daniel Frisbie, M.E. Gershenson, A.M. Goldman, I.H. Inoue, J. Mannhart, Andrew J. Millis, Alberto F. Morpurgo, Douglas Natelson, and  Jean-Marc Triscone, Electrostatic Modification of Novel Materials. Rev. Mod. Phys., 78(4), 1185, 2006. DOI: 10.1103/RevModPhys.78.1185


2005

M. Li, A. Posadas, C.H. Ahn, and E.I. Altman, Scanning tunneling microscopy study of terminal oxygen structures on WO3 (100) thin films. Surf. Sci, 579(2-3), 175, 2005. DOI:10.1016/j.susc.2005.02.007

X. Hong, A. Posadas, and C. H. Ahn, Examining the screening limit of field effect devices via the metal-insulator transition, Appl. Phys. Lett., 86, 142501, 2005.
DOI: 10.1016/j.susc.2005.02.007

A. Posadas, J.-B. Yau, C.H. Ahn, J. Han, S. Gariglio, K. Johnston, K.M. Rabe, and J.B. Neaton, Epitaxial growth of multiferroic YMnO3 on GaN. Appl. Phys. Lett., 87, 171915 2005. DOI: 10.1063/1.2120903


2004

M. Li, E.I. Altman, A. Posadas, and C.H. Ahn, Surface phase transitions upon reduction of epitaxial WO3 (100) thin films. Thin Solid Films, 446, 238, 2004.  DOI:10.1016/j.tsf.2003.10.002

M. Li, E.I. Altman, A. Posadas, and C.H. Ahn, Surface phase transitions and related surface defect structures upon reduction of epitaxial WO3 (100) thin films: a STM study. J. Vac. Sci. Technol., A22, 1682, 2004. DOI: 10.1016/j.tsf.2003.10.002

M. Li, W. Gao, A. Posadas, C.H. Ahn, and E.I. Altman, Reactivity of 1-propanol on p(nx2) reconstructed WO3 (100) thin films. J. Phys. Chem B., 108, 15259, 2004. DOI: 10.1021/jp047383y

A.    Demuer, D. Jaccard, J.W. Reiner, C.H. Ahn, and J.-M. Triscone, Magnetism of SrRuO3 thin films under hydrostatic pressure.  Ann. Phys. (Leipzig) 13, 72, 2004.  DOI: 10.1002/andp.200310052

X. Hong, F. Xiao, A. Posadas, and C.H. Ahn, Growth and characterization of La1-xSrxMnO3/ Pb(Zr0.2Ti0.8)O3 / La1-xSrxMnO3 heterostructures for 3-dimensional field effect studies, Ann. Phys. (Leipzig) 13(1-2), 15, 2004. DOI: 10.1002/andp.200310035

C.H. Ahn, K.M. Rabe, and J.-M. Triscone, Ferroelectricity at the Nanoscale:  Local Polarization in Oxide Thin Films and Heterostructures. Science, 303, 488, 2004. DOI: 10.1126/science.1092508

Y. Bason, L. Klein, J.-B. Yau, X. Hong, and C.H. Ahn, Giant planar Hall effect in colossal magnetoresistive La0.84Sr0.16MnO3 thin films. Appl. Phys. Lett., 84, 2593, 2004.
DOI: 10.1063/1.1695197

Y. Bason, L. Klein, J.-B. Yau, X. Hong, and C. H. Ahn, Characterization of the magnetic anisotropy in thin films of La1-xSrxMnO3 using the planar Hall effect. Phys. Stat. Sol. (c), 1(12), 3336, 2004. DOI: 10.1002/pssc.200405450

J. W. Reiner, F. J. Walker, R. A. McKee, C. A. Billman, J. Junquera, K. M. Rabe, and C. H. Ahn, Ferroelectric stability of BaTiO3 in a crystalline oxide on silicon structure. Physica Status Solidi B., 241(10), 2287, 2004. DOI: 10.1002/pssb.200404932


2002-2003

S. Gariglio, D. Matthey, C.H. Ahn, and J.-M. Triscone, Electrostatic Tuning of Hole Density in NdBa2Cu3O7-δ Films and its Effect on the Hall Response. Physical Review Letters., 88(6), 067002, 2002.  DOI: 10.1103/PhysRevLett.88.067002

D. Matthey, S. Gariglio, C.H. Ahn, and J.M. Triscone, Electrostatic Modulation of the Superconducting Transition in Thin NdBa2Cu3O7-δ Films:  the Role of Classical Fluctuations. Physica C, 583, 372, 2002. DOI: 10.1016/S0921-4534(02)00800-6

T. Tybell, P. Paruch, C.H. Ahn, and J.-M. Triscone, Nanoscale Study of Polarization Phenomena in Pb(Zr0.2Ti0.8)O3 Thin Films, SPIE Proc, 4811, 256, 2002. DOI: 10.1117/12.455542

D. Matthey, S. Gariglio, and C.H. Ahn, and J.-M. Triscone, Field Effect and Ferroelectric Field Effect in Correlated Oxide Films, SPIE Proc, 4811, 236, 2002. DOI: 10.1117/12.455539

X. Hong, A. Posadas, A. Lin, and C.H. Ahn, Ferroelectric field induced tuning of magnetism in the colossal magnetoresistive oxide La1-xSrxMnO3. Phys. Rev. B., 68, 134415, 2003. DOI: 10.1103/PhysRevB.68.134415

C.H. Ahn, J.-M. Triscone, and J. Mannhart, Electric field effect in correlated oxide systems. Nature, 424, 1015, 2003. DOI: 10.1038/nature01878

M. Li, E.I. Altman, A. Posadas, and C.H. Ahn, The p(4x2) surface reconstruction on epitaxial WO3 thin films. Surf. Sci, 542, 22, 2003. DOI: 10.1016/S0039-6028(03)00986-5


1999-2001

A.F. Marshall, L. Klein, J.S. Dodge, C.H. Ahn, J.W. Reiner, L. Miéville, L. Antognazza, A. Kapitulnik, T.H. Geballe, and M.R. Beasley, Lorentz Transmission Electron Microscope Study of Ferromagnetic Domain Walls in SrRuO3: Statics, Dynamics, and Crystal Structure Correlation. Journal of Applied Physics., 85, 4131, 1999. DOI : 10.1063/1.370322

T. Tybell, C.H. Ahn, and J.-M. Triscone, Ferroelectricity in Thin Perovskite Films. Appl. Phys. Lett., 75(6), 856, 1999. DOI : 10.1063/1.124536.

J.S. Dodge, E. Kulatov, L. Klein, C.H. Ahn, J.W. Reiner, L. Miéville, T.H. Geballe, M.R. Beasley, A. Kapitulnik, H. Ohta, Yu. Uspenskii, and S. Halilov, Temperature-dependent local exchange splitting in SrRuO3. Physical Review B 60, R6987, 1999. DOI: 10.1103/PhysRevB.60.R6987

C.H. Ahn, S. Gariglio, P. Paruch, T. Tybell, L. Antognazza, and J.-M. Triscone, Electrostatic Modulation of Superconductivity in Ultrathin GdBa2Cu3O7-x Films. Science, 284, 1152, 1999. DOI: 10.1126/science.284.5417.1152

S. Gariglio, C.H. Ahn, and J.-M. Triscone, Ferroelectric Field Effect in Epitaxial Pb(Zr0.2Ti0.8)O3/Nd1.13Ba1.87Cu3O7 Heterostuctures. Superconducting and Related Oxides:  Physics and Nanoengineering IV, SPIE Proc, 314, 2000. DOI:10.1117/12.397848

A. Lin, X. Hong, V. Wood, A. Verevkin, C.H. Ahn, R.A. McKee, F.J. Walker, and E.D. Specht, Epitaxial Growth of Pb(Zr0.2Ti0.8)O3 on Si and Its Nanoscale Piezoelectric Properties. Applied Physics Letters., 78, 2034. 2001. DOI: 10.1109/ISDRS.2001.984519


1994-1998

N. Terada, C.H. Ahn, D. Lew, Y. Suzuki, K.E. Kihlstrom, K.B. Do, S.B. Arnason, T.H. Geballe, R.H. Hammond, and M.R. Beasley, Surface study of YBa2Cu3O7-d epitaxial films cleaned by an atomic oxygen beam. Appl. Phys. Lett., 64, 2581, 1994. DOI: 10.1063/1.111532

S.J Benerofe, C.H. Ahn, M.M. Wang, K.E. Kihlstrom, K.B. Do, S.B. Arnason, M.M. Fejer, T.H. Geballe, M.R. Beasley, and R.H. Hammond, Dual beam atomic absorption spectroscopy for controlling thin film deposition rates. J. Vac. Sci. Technol. B, 12, 1217, 1994. DOI: 10.1116/1.587048

N. Terada, C.H. Ahn, D. Lew, Y. Suzuki, K.E. Kihlstrom, K.B. Do, S.B. Arnason, T.H. Geballe, R.H. Hammond, and M.R. Beasley, Photoemission and Tunneling Study of Epitaxial YBa2Cu3O7-d Films Cleaned using an Atomic Oxygen Beam. Physica C, 1061, 235, 1994. DOI: 10.1016/0921-4534(94)91755-8

C.H. Ahn, J.-M. Triscone, N. Archibald, M. Decroux, R.H. Hammond, T.H. Geballe, Ø. Fischer, and M.R. Beasley, Ferroelectric Field Effect in Epitaxial Thin Film Oxide SrCuO2/Pb(Zr0.52Ti0.48)O3 Heterostructures. Science, 269, 5222, 373, 1995. DOI: 10.1126/science.269.5222.373

W. Wang, R.H. Hammond, M.M. Fejer, C.H. Ahn, M.R. Beasley, M.D. Levenson, and M.L. Bortz, Diode-laser-based atomic absorption monitor using frequency-modulation spectroscopy for physical vapor deposition process control. Appl. Phys. Lett., 67, 1375, 1995. DOI: 10.1063/1.115538

W. Wang, M.M. Fejer, R.H. Hammond, M.R. Beasley, C.H. Ahn, M.L. Bortz, and T. Day, Atomic absorption monitor for deposition process control of aluminum at 394 nm using a frequency-doubled diode laser. Appl. Phys. Lett., 68, 729, 1996. DOI: 10.1063/1.116785

L. Klein, J.S. Dodge, C.H. Ahn, G.J. Snyder, T.H. Geballe, M.R. Beasley, A. Kapitulnik, Anomalous Spin Scattering Effects in the Badly Metallic Itinerant Ferromagnet SrRuO3. Phys. Rev. Lett., 77, 2774, 1996. DOI: 10.1103/PhysRevLett.77.2774

C.H. Ahn, L. Antognazza, T. Tybell, K. Char, M. Decroux, R.H. Hammond, T.H. Geballe, M.R. Beasley, Ø. Fischer, and J.-M. Triscone, Ferroelectric field effect in SrCuO2 and SrRuO3 films. J. Low Temp. Phys, 105, 1517, 1996. DOI: 10.1007/BF00753915

L. Klein, J.S. Dodge, C.H. Ahn, J.W. Reiner, L. Miéville, T.H. Geballe, M.R. Beasley, and A. Kapitulnik, Transport and magnetization in the badly metallic itinerant ferromagnet SrRuO3. J. Phys: Condens. Matter, 8, 10111, 1996. DOI:10.1088/0953-8984/8/48/026

C.H. Ahn, R.H. Hammond, T.H. Geballe, M.R. Beasley, J.-M. Triscone, M. Decroux, Ø. Fischer, L. Antognazza, and K. Char, Ferroelectric field effect in ultrathin SrRuO3 films. Appl. Phys. Lett., 70, 206, 1997. DOI: 10.1063/1.118203

T. Tybell, L. Antognazza, C.H. Ahn, L. Frauchiger, P. Pranyies, M. Decroux, M.G. Karkut, R. Passerini, P. Stadelmann, J. Ramm, E. Beck, Ø. Fischer, and J.-M. Triscone, Croissance et propriétés structurales de couches minces épitaxiales de Pb(ZrxTi1-x)O3 et d’hétéro-structures Pb(ZrxTi1-x)O3-oxydes métalliques. Le Vide, 53, 48, 1997. ISSN  1266-0167 

A.F. Marshall, L. Klein, J.S. Dodge, C.H. Ahn, J.W. Reiner, L. Miéville, T.H. Geballe, M.R. Beasley, and A. Kapitulnik, Magnetic and crystallographic microstructure of SrRuO3, studied by Lorentz TEM. Proceedings Microscopy Society of America Annual Meeting, Cleveland, OH, p. 521, 1997. ISSN: 1431-9276

C.H. Ahn, T. Tybell, L. Antognazza, K. Char, M.R. Beasley, Ø. Fischer, and J.-M. Triscone, Electronic Doping in Epitaxial Pb(Zr0.52Ti0.48)O3/SrRuO3 Heterostructures Using a Ferroelectric Field Effect. Mat. Res. Soc. Symp. Proc, 474, 313, 1997. DOI: 10.1557/PROC-474-313

A.F. Marshall, L. Klein, C.H. Ahn, S. Dodge, J.W. Reiner, L. Antognazza, L. Miéville, A. Kapitulnik, T.H. Geballe, and M.R. Beasley, Magnetic and Crystalline Microstructure of SrRuO3 Thin Films. Mat. Res. Soc. Symp. Proc, 474, 223, 1997. DOI: 10.1557/PROC-474-223

C.H. Ahn, T. Tybell, L. Antognazza, K. Char, R.H. Hammond, M. R. Beasley, Ø. Fischer, and J.-M. Triscone, Local, Nonvolatile Electronic Writing of Epitaxial Pb(Zr0.52Ti0.48)O3/SrRuO3 Heterostructures. Science, 276, 1100, 1997. DOI: 10.1126/science.276.5315.1100

T. Tybell, C.H. Ahn, and J.-M. Triscone, Control and imaging of ferroelectric domains over large areas with nanometer resolution in atomically smooth epitaxial Pb(Zr0.2Ti0.8)O3 thin   films. Appl. Phys. Lett., 72, 1454, 1998. DOI: 10.1063/1.120591

T. Tybell, C.H. Ahn, and J.-M. Triscone, Writing Electronic Nanofeatures in Epitaxial Oxide Heterostructures, Helv. Phys. Acta, 71, S1, 1998. ISSN  0018-0238

C.H. Ahn, T. Tybell, L. Antognazza, K. Char, R.H. Hammond, M.R. Beasley, Ø. Fischer, and J.-M. Triscone, Nonvolatile, Reversible Writing of Electronic Nanostructures in Epitaxial Ferroelectric/Metallic Oxide Heterostructures Using a Field Effect. Mat. Res. Soc. Symp. Proc, 493, 29, 1998. DOI: 10.1557/PROC-493-291

L. Klein, A.F. Marshall, J.W. Reiner, C.H. Ahn, T.H. Geballe, M.R. Beasley, and A. Kapitulnik, Large Magnetoresistance of Single Crystal Films of Ferromagnetic SrRuO3. J. Magn. Mater, 188, 319, 1998. DOI: 10.1016/S0304-8853(98)00201-7

C.H. Ahn, T. Tybell, O. Kuffer, L. Antognazza, K. Char, R.H. Hammond, M.R. Beasley, Ø. Fischer, and J-M. Triscone, Scanning Probe Microscopy for the Imaging and Control of Complex Oxides. J. Mat. Sci. Eng B, 56(2-3), 173, 1998. DOI: 10.1016/S0921-5107(98)00231-1

C.H. Ahn, T. Tybell, L. Antognazza, K. Char, M.R. Beasley, C. Beeli, P. Stadelmann, Ø. Fischer, and J.-M. Triscone, Electronic Nanofeatures in Epitaxial Ferroelectric Oxide Heterostructures. SPIE Proc, 3481, 435, 1998. DOI: 10.1117/12.335881

T. Tybell, C.H. Ahn, L. Antognazza, and J.-M. Triscone, Etude et Modification Locales de la Structure de Domaines Ferroélectriques dans des Couches Minces de Pb(ZrxTi1-x)O3.  Le Vide, 289, 551, 1998.  ISSN 1266-0167 

T. Tybell, C.H. Ahn, M. Foeth, and J.-M. Triscone, Nanometer Control of the Ferroelectric Polarization in Pb(Zr0.2Ti0.8)O3 Thin Films. Proceedings of the Eleventh IEEE International Symposium on Applications of Ferroelectrics, 431, 1998. DOI: 10.1109/ISAF.1998.786724