Publications

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2012
Yu, P., Y.H. Chu, and Ramamoorthy Ramesh. "Emergent phenomena at multiferroic heterointerfaces." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 370 (2012) 4856-4871.
Balke, N., B. Winchester, W. Ren, Y.H. Chu, A.N. Morozovska, E.A. Eliseev, M. Huijben, R.K. Vasudevan, P. Maksymovych, J. Britson, S. Jesse, I. Kornev, Ramamoorthy Ramesh, L. Bellaiche, L.Q. Chen, and S.V. Kalinin. "Enhanced electric conductivity at ferroelectric vortex cores in BiFeO 3." Nature Physics 8 (2012) 81-88.
Lubk, A., M.D. Rossell, J. Seidel, Q. He, S.Y. Yang, Y.H. Chu, Ramamoorthy Ramesh, M.J. Hÿtch, and E. Snoeck. "Evidence of sharp and diffuse domain walls in BiFeO 3 by means of unit-cell-wise strain and polarization maps obtained with high resolution scanning transmission electron microscopy." Physical Review Letters 109 (2012).
Yu, P., W. Luo, D. Yi, J.X. Zhang, M.D. Rossell, C.-H. Yang, L. You, G. Singh-Bhalla, S.Y. Yang, Q. He, Q.M. Ramasse, R. Erni, L.W. Martin, Y.H. Chu, S.T. Pantelides, S.J. Pennycook, and Ramamoorthy Ramesh. "Interface control of bulk ferroelectric polarization." Proceedings of the National Academy of Sciences of the United States of America 109 (2012) 9710-9715.
Yang, J.C., Q. He, S.J. Suresha, C.Y. Kuo, C.Y. Peng, R.C. Haislmaier, M.A. Motyka, G. Sheng, C. Adamo, H.J. Lin, Z. Hu, L. Chang, L.H. Tjeng, E. Arenholz, N.J. Podraza, M. Bernhagen, R. Uecker, D.G. Schlom, V. Gopalan, L.Q. Chen, C.T. Chen, Ramamoorthy Ramesh, and Y.H. Chu. "Orthorhombic BiFeO3." Physical Review Letters 109 (2012).
Kim, Y.-M., A. Hatt, A. Kumar, I. Ivanov, A. Morozovska, A. Tselev, Y.H. Chu, P. Yu, M.D. Biegalski, Ramamoorthy Ramesh, E. Eliseev, S.J. Pennycook, J. Rondinelli, S.V. Kalinin, and A.Y. Borisevich. "Unconventional Antiferroelectric Phase Stabilization in Thin Film BiFeO3 by Interface-Induced Rotoelectric Coupling Effect." Microscopy and Microanalysis 18 (2012) 412-413.
2010
Langner, M.C., C.L.S. Kantner, Y.H. Chu, L.M. Martin, P. Yu, Ramamoorthy Ramesh, and J. Orenstein. "Effective thermal boundary resistance from thermal decoupling of magnons and phonons in SrRuO3 thin films." Physical Review B - Condensed Matter and Materials Physics 82 (2010).
Baek, S.H., H.W. Jang, C.M. Folkman, Y.L. Li, B. Winchester, J.X. Zhang, Q. He, Y.H. Chu, C.T. Nelson, M.S. Rzchowski, X.Q. Pan, Ramamoorthy Ramesh, L.Q. Chen, and C.B. Eom. "Ferroelastic switching for nanoscale non-volatile magnetoelectric devices." Nature Materials 9 (2010) 309-314.
Oh, Y.S., S. Crane, H. Zheng, Y.H. Chu, Ramamoorthy Ramesh, and K.H. Kim. "Quantitative determination of anisotropic magnetoelectric coupling in BiFeO3-CoFe2O4 nanostructures." Applied Physics Letters 97 (2010).
Huang, C.W., Y.H. Chu, Z.H. Chen, J. Wang, T. Sritharan, Q. He, Ramamoorthy Ramesh, and L. Chen. "Strain-driven phase transitions and associated dielectric/piezoelectric anomalies in BiFeO3 thin films." Applied Physics Letters 97 (2010).
Borisevich, A.Y., H.J. Chang, M. Huijben, M.P. Oxley, S. Okamoto, M.K. Niranjan, J.D. Burton, E.Y. Tsymbal, Y.H. Chu, P. Yu, Ramamoorthy Ramesh, S.V. Kalinin, and S.J. Pennycook. "Suppression of octahedral tilts and associated changes in electronic properties at epitaxial oxide heterostructure interfaces." Physical Review Letters 105 (2010).
2009
Balke, N., S. Choudhury, S. Jesse, M. Huijben, Y.H. Chu, A.P. Baddorf, L.Q. Chen, Ramamoorthy Ramesh, and S.V. Kalinin. "Deterministic control of ferroelastic switching in multiferroic materials." Nature Nanotechnology 4 (2009) 868-875.
Yang, C.-H., J. Seidel, S.Y. Kim, P.B. Rossen, P. Yu, M. Gajek, Y.H. Chu, L.W. Martin, M.B. Holcomb, Q. He, P. Maksymovych, N. Balke, S.V. Kalinin, A.P. Baddorf, S.R. Basu, M.L. Scullin, and Ramamoorthy Ramesh. "Electric modulation of conduction in multiferroic Ca-doped BiFeO 3 films." Nature Materials 8 (2009) 485-493.
Ramirez, M.O., A. Kumar, S.A. Denev, N.J. Podraza, X.S. Xu, R.C. Rai, Y.H. Chu, J. Seidel, L.W. Martin, S.-Y. Yang, E. Saiz, J.F. Ihlefeld, S. Lee, J. Klug, S.W. Cheong, M.J. Bedzyk, O. Auciello, D.G. Schlom, Ramamoorthy Ramesh, J. Orenstein, J.L. Musfeldt, and V. Gopalan. "Magnon sidebands and spin-charge coupling in bismuth ferrite probed by nonlinear optical spectroscopy." Physical Review B - Condensed Matter and Materials Physics 79 (2009).
Langner, M.C., C.L.S. Kantner, Y.H. Chu, L.M. Martin, P. Yu, J. Seidel, Ramamoorthy Ramesh, and J. Orenstein. "Observation of ferromagnetic resonance in SrRuO3 by the time-resolved magneto-optical Kerr effect." Physical Review Letters 102 (2009).
Xu, X.S., T.V. Brinzari, S. Lee, Y.H. Chu, L.W. Martin, A. Kumar, S. McGill, R.C. Rai, Ramamoorthy Ramesh, V. Gopalan, S.W. Cheong, and J.L. Musfeldt. "Optical properties and magnetochromism in multiferroic BiFeO3." Physical Review B - Condensed Matter and Materials Physics 79 (2009).
Pintilie, L., C. Dragoi, Y.H. Chu, L.W. Martin, Ramamoorthy Ramesh, and M. Alexe. "Orientation-dependent potential barriers in case of epitaxial Pt- BiFeO3 - SrRuO3 capacitors." Applied Physics Letters 94 (2009).
Huang, C.W., L. Chen, J. Wang, Q. He, S.Y. Yang, Y.H. Chu, and Ramamoorthy Ramesh. "Phenomenological analysis of domain width in rhombohedral BiFeO3 films." Physical Review B - Condensed Matter and Materials Physics 80 (2009).
Ramirez, M.O., A. Kumar, S.A. Denev, Y.H. Chu, J. Seidel, L.W. Martin, S.-Y. Yang, R.C. Rai, X.S. Xue, J.F. Ihlefeld, N.J. Podraza, E. Saiz, S. Lee, J. Klug, S.W. Cheong, M.J. Bedzyk, O. Auciello, D.G. Schlom, J. Orenstein, Ramamoorthy Ramesh, J.L. Musfeldt, A.P. Litvinchuk, and V. Gopalan. "Spin-charge-lattice coupling through resonant multimagnon excitations in multiferroic BiFe O3." Applied Physics Letters 94 (2009).
Rodriguez, B.J., S. Choudhury, Y.H. Chu, A. Bhattacharyya, S. Jesse, K. Seal, A.P. Baddorf, Ramamoorthy Ramesh, L.-Q. Chen, and S.V. Kalinin. "Unraveling deterministic mesoscopic polarization switching mechanisms: spatially resolved studies of a tilt grain boundary in bismuth ferrite." Advanced Functional Materials 19 (2009) 2053-2063.

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