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Journal Article
Ramirez, M.O., M. Krishnamurthi, S. Denev, A. Kumar, S.-Y. Yang, Y.-H. Chu, E. Saiz, J. Seidel, A.P. Pyatakov, A. Bush, D. Viehland, J. Orenstein, Ramamoorthy Ramesh, and V. Gopalan. "Two-phonon coupling to the antiferromagnetic phase transition in multiferroic BiFeO3." Applied Physics Letters 92 (2008).
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).
Wehmeier, L., T. Nörenberg, T.V.A.G. De Oliveira, J.M. Klopf, S.-Y. Yang, L.W. Martin, Ramamoorthy Ramesh, L.M. Eng, and S.C. Kehr. "Phonon-induced near-field resonances in multiferroic BiFeO3 thin films at infrared and THz wavelengths." Applied Physics Letters 116 (2020).
Kehr, S.C., Y.M. Liu, L.W. Martin, P. Yu, M. Gajek, S.-Y. Yang, C.-H. Yang, M.T. Wenzel, R. Jacob, H.-G. von Ribbeck, M. Helm, X. Zhang, L.M. Eng, and Ramamoorthy Ramesh. "Near-field examination of perovskite-based superlenses and superlens-enhanced probe-object coupling." Nature Communications 2 (2011).
Seidel, J., S.-Y. Yang, E. Alarcón-Lladó, J.W. Ager, and Ramamoorthy Ramesh. "Nanoscale probing of high photovoltages at 109 domain walls." Ferroelectrics 433 (2012) 123-126.
Chu, Y.-H., Q. Zhan, L.W. Martin, M.P. Cruz, P.-L. Yang, G.W. Pabst, F. Zavaliche, S.-Y. Yang, J.-X. Zhang, L.-Q. Chen, D.G. Schlom, I.-N. Lin, T.-B. Wu, and Ramamoorthy Ramesh. "Nanoscale domain control in multiferroic BiFeO3 thin films." Advanced Materials 18 (2006) 2307-2311.
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).
Seidel, J., D. Fu, S.-Y. Yang, E. Alarcón-Lladó, J. Wu, Ramamoorthy Ramesh, and J.W. Ager. "Efficient photovoltaic current generation at ferroelectric domain walls." Physical Review Letters 107 (2011).
Seidel, J., G. Singh-Bhalla, Q. He, S.-Y. Yang, Y.-H. Chu, and Ramamoorthy Ramesh. "Domain wall functionality in BiFeO3." Phase Transitions 86 (2013) 53-66.
Seidel, J., P. Maksymovych, Y. Batra, A. Katan, S.-Y. Yang, Q. He, A.P. Baddorf, S.V. Kalinin, C.-H. Yang, J.-C. Yang, Y.-H. Chu, E.K.H. Salje, H. Wormeester, M. Salmeron, and Ramamoorthy Ramesh. "Domain wall conductivity in La-doped BiFeO3." Physical Review Letters 105 (2010).