Publications

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2012
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.
2011
He, Q., Y.-H. Chu, J.T. Heron, S.Y. Yang, W.I. Liang, C.Y. Kuo, H.J. Lin, P. Yu, C.W. Liang, R.J. Zeches, W.C. Kuo, J.Y. Juang, C.T. Chen, E. Arenholz, A. Scholl, and Ramamoorthy Ramesh. "Electrically controllable spontaneous magnetism in nanoscale mixed phase multiferroics." Nature Communications 2 (2011).
Heron, J.T., M. Trassin, K. Ashraf, M. Gajek, Q. He, S.Y. Yang, Y.-H. Chu, S. Salahuddin, and Ramamoorthy Ramesh. "Electric-field-induced magnetization reversal in a ferromagnet-multiferroic heterostructure." Physical Review Letters 107 (2011).
Zhang, J.X., B. Xiang, Q. He, J. Seidel, R.J. Zeches, P. Yu, S.Y. Yang, C.H. Wang, Y.-H. Chu, L.W. Martin, A.M. Minor, and Ramamoorthy Ramesh. "Large field-induced strains in a lead-free piezoelectric material." Nature Nanotechnology 6 (2011) 98-102.
2010
Yang, S.Y., J. Seidel, S.J. Byrnes, P. Shafer, C.-H. Yang, M.D. Rossell, P. Yu, Y.-H. Chu, J.F. Scott, J.W. Ager, L.W. Martin, and Ramamoorthy Ramesh. "Above-bandgap voltages from ferroelectric photovoltaic devices." Nature Nanotechnology 5 (2010) 143-147.
Yu, P., J.-S. Lee, S. Okamoto, M.D. Rossell, M. Huijben, C.-H. Yang, Q. He, J.X. Zhang, S.Y. Yang, M.J. Lee, Q.M. Ramasse, R. Erni, Y.-H. Chu, D.A. Arena, C.-C. Kao, L.W. Martin, and Ramamoorthy Ramesh. "Interface ferromagnetism and orbital reconstruction in BiFeO 3-La0.7Sr0.3MnO3 heterostructures." Physical Review Letters 105 (2010).
Holcomb, M.B., L.W. Martin, A. Scholl, Q. He, P. Yu, C.-H. Yang, S.Y. Yang, P.-A. Glans, M. Valvidares, M. Huijben, J.B. Kortright, J. Guo, Y.-H. Chu, and Ramamoorthy Ramesh. "Probing the evolution of antiferromagnetism in multiferroics." Physical Review B - Condensed Matter and Materials Physics 81 (2010).
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).
Yang, S.Y., L.W. Martin, S.J. Byrnes, T.E. Conry, S.R. Basu, D. Paran, L. Reichertz, J. Ihlefeld, C. Adamo, A. Melville, Y.-H. Chu, C.-H. Yang, J.L. Musfeldt, D.G. Schlom, J.W. Ager, and Ramamoorthy Ramesh. "Photovoltaic effects in BiFeO3." Applied Physics Letters 95 (2009).
2007
Yang, S.Y., Q. Zhan, P.L. Yang, M.P. Cruz, Y.H. Chu, Ramamoorthy Ramesh, Y.R. Wu, J. Singh, W. Tian, and D.G. Schlom. "+Capacitance-voltage characteristics of BiFe O3 SrTi O3 GaN heteroepitaxial structures." Applied Physics Letters 91 (2007).
Tian, W., V. Vaithyanathan, D.G. Schlom, Q. Zhan, S.Y. Yang, Y.H. Chu, and Ramamoorthy Ramesh. "Epitaxial integration of (0001) BiFe O3 with (0001) GaN." Applied Physics Letters 90 (2007).
Chu, Y.H., L.W. Martin, Q. Zhan, P.L. Yang, M.P. Cruz, K. Lee, M. Barry, S.Y. Yang, and Ramamoorthy Ramesh. "Epitaxial multiferroic BiFeO3 thin films: Progress and future directions." Ed. V., Fridkin, Ducharme S., Kleemann W., and Ishibashi Y. Ferroelectrics 354 (2007) 167-177.
Ramesh, Ramamoorthy, F. Zavaliche, Y.H. Chu, L.W. Martin, S.Y. Yang, M.P. Cruz, M. Barry, K. Lee, P. Yang, and Q. Zhan. "Magnetoelectric complex-oxide heterostructures." Philosophical Magazine Letters 87 (2007) 155-164.
2006
Zavaliche, F., S.Y. Yang, T. Zhao, Y.H. Chu, M.P. Cruz, C.B. Eom, and Ramamoorthy Ramesh. "Multiferroic BiFeO3 films: Domain structure and polarization dynamics." Phase Transitions 79 (2006) 991-1017.
Das, R.R., D.M. Kim, S.H. Baek, C.B. Eom, F. Zavaliche, S.Y. Yang, Ramamoorthy Ramesh, Y.B. Chen, X.Q. Pan, X. Ke, M.S. Rzchowski, and S.K. Streiffer. "Synthesis and ferroelectric properties of epitaxial BiFeO 3 thin films grown by sputtering." Applied Physics Letters 88 (2006).
2005
Zavaliche, F., H. Zheng, L. Mohaddes-Ardabili, S.Y. Yang, Q. Zhan, P. Shafer, E. Reilly, R. Chopdekar, Y. Jia, P. Wright, D.G. Schlom, Y. Suzuki, and Ramamoorthy Ramesh. "Electric field-induced magnetization switching in epitaxial columnar nanostructures." Nano Letters 5 (2005) 1793-1796.
Zavaliche, F., R.R. Das, D.M. Kim, C.B. Eom, S.Y. Yang, P. Shafer, and Ramamoorthy Ramesh. "Ferroelectric domain structure in epitaxial BiFeO 3 films." Applied Physics Letters 87 (2005) 1-3.
Yang, S.Y., F. Zavaliche, L. Mohaddes-Ardabili, V. Vaithyanathan, D.G. Schlom, Y.J. Lee, Y.H. Chu, M.P. Cruz, Q. Zhan, T. Zhao, and Ramamoorthy Ramesh. "Metalorganic chemical vapor deposition of lead-free ferroelectric BiFeO 3 films for memory applications." Applied Physics Letters 87 (2005).
Mohaddes-Ardabili, L., H. Zheng, Q. Zhan, S.Y. Yang, Ramamoorthy Ramesh, L. Salamanca-Riba, M. Wuttig, S.B. Ogale, and X. Pan. "Size and shape evolution of embedded single-crystal α -Fe nanowires." Applied Physics Letters 87 (2005) 1-3.
2004
Ouyang, J., S.Y. Yang, L. Chen, Ramamoorthy Ramesh, and A.L. Roytburd. "Orientation dependence of the converse piezoelectric constants for epitaxial single domain ferroelectric films." Applied Physics Letters 85 (2004) 278-280.