Publications
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2012
Maksymovych, P., M. Huijben, M. Pan, S. Jesse, N. Balke, Y.-H. Chu, H.J. Chang, A.Y. Borisevich, A.P. Baddorf, G. Rijnders, D.H.A. Blank, Ramamoorthy Ramesh, and S.V. Kalinin."Ultrathin limit and dead-layer effects in local polarization switching of BiFeO 3."Physical Review B - Condensed Matter and Materials Physics
85 (2012). DOI
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. DOI
Lee, B.Y., J. Zhang, C. Zueger, W.-J. Chung, S.Y. Yoo, E. Wang, J. Meyer, Ramamoorthy Ramesh, and S.-W. Lee."Virus-based piezoelectric energy generation."Nature Nanotechnology
7 (2012) 351-356. DOI
2011
Chi, M., T. Mizoguchi, L.W. Martin, J.P. Bradley, H. Ikeno, Ramamoorthy Ramesh, I. Tanaka, and N. Browning."Atomic and electronic structures of the SrVO3-LaAlO3 interface."Journal of Applied Physics
110 (2011). DOI
Chang, H.J., S.V. Kalinin, A.N. Morozovska, M. Huijben, Y.-H. Chu, P. Yu, Ramamoorthy Ramesh, E.A. Eliseev, G.S. Svechnikov, S.J. Pennycook, and A.Y. Borisevich."Atomically resolved mapping of polarization and electric fields across ferroelectric/oxide interfaces by z-contrast imaging."Advanced Materials
23 (2011) 2474-2479. DOI
Chiu, Y.-P., Y.-T. Chen, B.-C. Huang, M.-C. Shih, J.-C. Yang, Q. He, C.-W. Liang, J. Seidel, Y.-C. Chen, Ramamoorthy Ramesh, and Y.-H. Chu."Atomic-scale evolution of local electronic structure across multiferroic domain walls."Advanced Materials
23 (2011) 1530-1534. DOI
Singh-Bhalla, G., C. Bell, J. Ravichandran, W. Siemons, Y. Hikita, S. Salahuddin, A.F. Hebard, H.Y. Hwang, and Ramamoorthy Ramesh."Built-in and induced polarization across LaAlO 3 /SrTiO 3 heterojunctions."Nature Physics
7 (2011) 80-86. DOI
Ko, K.-T., M.H. Jung, Q. He, J.H. Lee, C.S. Woo, K. Chu, J. Seidel, B.-G. Jeon, Y.S. Oh, K.H. Kim, W.-I. Liang, H.-J. Chen, Y.-H. Chu, Y.H. Jeong, Ramamoorthy Ramesh, J.-H. Park, and C.-H. Yang."Concurrent transition of ferroelectric and magnetic ordering near room temperature."Nature Communications
2 (2011). DOI
Polking, M.J., H. Zheng, Ramamoorthy Ramesh, and A.P. Alivisatos."Controlled synthesis and size-dependent polarization domain structure of colloidal germanium telluride nanocrystals."Journal of the American Chemical Society
133 (2011) 2044-2047. DOI
Polomoff, N.A., A. Rakin, S. Lee, V. Palumbo, P. Yu, Y.H. Chu, Ramamoorthy Ramesh, and B.D. Huey."Correlation between nanoscale and nanosecond resolved ferroelectric domain dynamics and local mechanical compliance."Journal of Applied Physics
109 (2011). DOI
Kantner, C.L.S., M.C. Langner, W. Siemons, J.L. Blok, G. Koster, A.J.H.M. Rijnders, Ramamoorthy Ramesh, and J. Orenstein."Determination of the spin-flip time in ferromagnetic SrRuO3 from time-resolved Kerr measurements."Physical Review B - Condensed Matter and Materials Physics
83 (2011). DOI
Wu, C.-L., P.-W. Lee, Y.-C. Chen, L.-Y. Chang, C.-H. Chen, C.-W. Liang, P. Yu, Q. He, Ramamoorthy Ramesh, and Y.-H. Chu."Direct spectroscopic evidence of charge reversal at the Pb(Zr 0.2Ti0.8)O3/La0.7Sr 0.3MnO3 heterointerface."Physical Review B - Condensed Matter and Materials Physics
83 (2011). DOI
Maksymovych, P., J. Seidel, Y.H. Chu, P. Wu, A.P. Baddorf, L.-Q. Chen, S.V. Kalinin, and Ramamoorthy Ramesh."Dynamic conductivity of ferroelectric domain walls in BiFeO3."Nano Letters
11 (2011) 1906-1912. DOI
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). DOI
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). DOI
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). DOI
Khan, Islam, D. Bhowmik, P. Yu, Joo Kim, X. Pan, Ramamoorthy Ramesh, and S. Salahuddin."Experimental evidence of ferroelectric negative capacitance in nanoscale heterostructures."Applied Physics Letters
99 (2011). DOI
Zhou, S.Y., Y. Zhu, M.C. Langner, Y.-D. Chuang, P. Yu, W.L. Yang, A.G. Gonzalez, N. Tahir, M. Rini, Y.-H. Chu, Ramamoorthy Ramesh, D.-H. Lee, Y. Tomioka, Y. Tokura, Z. Hussain, and R.W. Schoenlein."Ferromagnetic enhancement of CE-type spin ordering in (Pr,Ca)MnO 3."Physical Review Letters
106 (2011). DOI
Baek, S.H., J. Park, D.M. Kim, V.A. Aksyuk, R.R. Das, S.D. Bu, D.A. Felker, J. Lettieri, V. Vaithyanathan, S.S.N. Bharadwaja, N. Bassiri-Gharb, Y.B. Chen, H.P. Sun, C.M. Folkman, H.W. Jang, D.J. Kreft, S.K. Streiffer, Ramamoorthy Ramesh, X.Q. Pan, S. Trolier-McKinstry, D.G. Schlom, M.S. Rzchowski, R.H. Blick, and C.B. Eom."Giant piezoelectricity on Si for hyperactive MEMS."Science
334 (2011) 958-961. DOI
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. DOI
Fan, W., J. Cao, J. Seidel, Y. Gu, J.W. Yim, C. Barrett, K.M. Yu, J. Ji, Ramamoorthy Ramesh, L.Q. Chen, and J. Wu."Large kinetic asymmetry in the metal-insulator transition nucleated at localized and extended defects."Physical Review B - Condensed Matter and Materials Physics
83 (2011). DOI
Zhang, J.X., Q. He, M. Trassin, W. Luo, D. Yi, M.D. Rossell, P. Yu, L. You, C.H. Wang, C.Y. Kuo, J.T. Heron, Z. Hu, R.J. Zeches, H.J. Lin, A. Tanaka, C.T. Chen, L.H. Tjeng, Y.-H. Chu, and Ramamoorthy Ramesh."Microscopic origin of the giant ferroelectric polarization in tetragonal-like BiFeO3."Physical Review Letters
107 (2011). DOI
Kehr, S.C., P. Yu, Y. Liu, M. Parzefall, A.I. Khan, R. Jacob, M.T. Wenzel, H.-G. von Ribbeck, M. Helm, X. Zhang, L.M. Eng, and Ramamoorthy Ramesh."Microspectroscopy on perovskite-based superlenses [Invited]."Optical Materials Express
1 (2011) 1051-1060. DOI
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). DOI