Publications

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Conference Paper
Wolpert, D., W. Cox, J. Cerne, A. Markelz, T. Zhao, and Ramamoorthy Ramesh. "Finite size effects in ferroelectric nanosystems: Absence of mode softening." 2003 Nanotechnology Conference and Trade Show - Nanotech 2003. Ed. M., Romanowicz. Vol. 2. 2003. 76-79.
Journal Article
Zhao, T., S.B. Ogale, S.R. Shinde, Ramamoorthy Ramesh, R. Droopad, J. Yu, K. Eisenbeiser, and J. Misewich. "Colossal magnetoresistive manganite-based ferroelectric field-effect transistor on Si." Applied Physics Letters 84 (2004) 750-752.
Wolpert, D., K. Korolev, S. Sachs, J. Knab, W. Cox, J. Cerne, A.G. Markelz, T. Zhao, Ramamoorthy Ramesh, and B.H. Moeckly. "Direct measurements of optical phonons in SrTiO3 nanosystems." Physica E: Low-Dimensional Systems and Nanostructures 19 (2003) 236-239.
Nagarajan, V., A. Roytburd, A. Stanishevsky, S. Prasertchoung, T. Zhao, L. Chen, J. Melngailis, O. Auciello, and Ramamoorthy Ramesh. "Dynamics of ferroelastic domains in ferroelectric thin films." Nature Materials 2 (2003) 43-47.
Ma, Z., F. Zavaliche, L. Chen, J. Ouyang, J. Melngailis, A.L. Roytburd, V. Vaithyanathan, D.G. Schlom, T. Zhao, and Ramamoorthy Ramesh. "Effect of 90° domain movement on the piezoelectric response of patterned PbZr 0.2 Ti 0.8 O 3 SrTiO 3 Si heterostructures." Applied Physics Letters 87 (2005).
Zhao, T., S.R. Shinde, S.B. Ogale, H. Zheng, T. Venkatesan, Ramamoorthy Ramesh, and S.D. Sarma. "Electric field effect in diluted magnetic insulator anatase Co: TiO 2." Physical Review Letters 94 (2005).
Zhao, T., A. Scholl, F. Zavaliche, K. Lee, M. Barry, A. Doran, M.P. Cruz, Y.H. Chu, C. Ederer, N.A. Spaldin, R.R. Das, D.M. Kim, S.H. Baek, C.B. Eom, and Ramamoorthy Ramesh. "Electrical control of antiferromagnetic domains in multiferroic BiFeO 3 films at room temperature." Nature Materials 5 (2006) 823-829.
Zavaliche, F., T. Zhao, H. Zheng, F. Straub, M.P. Cruz, P.-L. Yang, D. Hao, and Ramamoorthy Ramesh. "Electrically assisted magnetic recording in multiferroic nanostructures." Nano Letters 7 (2007) 1586-1590.
Chu, Y.H., T. Zhao, M.P. Cruz, Q. Zhan, P.L. Yang, L.W. Martin, M. Huijben, C.H. Yang, F. Zavaliche, H. Zheng, and Ramamoorthy Ramesh. "Ferroelectric size effects in multiferroic BiFeO3 thin films." Applied Physics Letters 90 (2007).
Kalinin, S.V., B.J. Rodriguez, S. Jesse, Y.H. Chu, T. Zhao, Ramamoorthy Ramesh, S. Choudhury, L.Q. Chen, E.A. Eliseev, and A.N. Morozovska. "Intrinsic single-domain switching in ferroelectric materials on a nearly ideal surface." Proceedings of the National Academy of Sciences of the United States of America 104 (2007) 20204-20209.
Chu, Y.H., Q. Zhan, C.-H. Yang, M.P. Cruz, L.W. Martin, T. Zhao, P. Yu, Ramamoorthy Ramesh, P.T. Joseph, I.N. Lin, W. Tian, and D.G. Schlom. "Low voltage performance of epitaxial BiFeO3 films on Si substrates through lanthanum substitution." Applied Physics Letters 92 (2008).
Pintilie, L., I. Boerasu, M.J.M. Gomes, T. Zhao, Ramamoorthy Ramesh, and M. Alexe. "Metal-ferroelectric-metal structures with Schottky contacts. II. Analysis of the experimental current-voltage and capacitance-voltage characteristics of Pb (Zr,Ti) O 3 thin films." Journal of Applied Physics 98 (2005).
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).
Zheng, H., J. Wang, S.E. Lofland, Z. Ma, L. Mohaddes-Ardabili, T. Zhao, L. Salamanca-Riba, S.R. Shinde, S.B. Ogale, F. Bai, D. Viehland, Y. Jia, D.G. Schlom, M. Wuttig, A. Roytburd, and Ramamoorthy Ramesh. "Multiferroic BaTiO3-CoFe2O4 Nanostructures." Science 303 (2004) 661-663.
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.
Zhao, T., A. Scholl, F. Zavaliche, H. Zheng, M. Barry, A. Doran, K. Lee, M.P. Cruz, and Ramamoorthy Ramesh. "Nanoscale x-ray magnetic circular dichroism probing of electric-field- induced magnetic switching in multiferroic nanostructures." Applied Physics Letters 90 (2007).
Nagarajan, V., A. Stanishevsky, L. Chen, T. Zhao, B.-T. Liu, J. Melngailis, A.L. Roytburd, Ramamoorthy Ramesh, J. Finder, Z. Yu, R. Droopad, and K. Eisenbeiser. "Realizing intrinsic piezoresponse in epitaxial submicron lead zirconate titanate capacitors on Si." Applied Physics Letters 81 (2002) 4215-4217.
Kalinin, S.V., S. Jesse, B.J. Rodriguez, K. Seal, A.P. Baddorf, T. Zhao, Y.H. Chu, Ramamoorthy Ramesh, E.A. Eliseev, A.N. Morozovska, B. Mirman, and E. Karapetian. "Recent advances in electromechanical imaging on the nanometer scale: Polarization dynamics in ferroelectrics, biopolymers, and liquid imaging." Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers 46 (2007) 5674-5685.
Nagarajan, V., J. Junquera, J.Q. He, C.L. Jia, R. Waser, K. Lee, Y.K. Kim, Sunhee Baik, T. Zhao, Ramamoorthy Ramesh, Ph. Ghosez, and K.M. Rabe. "Scaling of structure and electrical properties in ultrathin epitaxial ferroelectric heterostructures." Journal of Applied Physics 100 (2006).
Mohaddes-Ardabili, L., H. Zheng, S.B. Ogale, B. Hannoyer, W. Tian, J. Wang, S.E. Lofland, S.R. Shinde, T. Zhao, Y. Jia, L. Salamanca-Riba, D.G. Schlom, M. Wuttig, and Ramamoorthy Ramesh. "Self-assembled single-crystal ferromagnetic iron nanowires formed by decomposition." Nature Materials 3 (2004) 533-538.
Nagarajan, V., S. Prasertchoung, T. Zhao, H. Zheng, J. Ouyang, Ramamoorthy Ramesh, W. Tian, X.Q. Pan, D.M. Kim, C.B. Eom, H. Kohlstedt, and R. Waser. "Size effects in ultrathin epitaxial ferroelectric heterostructures." Applied Physics Letters 84 (2004) 5225-5227.
Rodriguez, B.J., S. Jesse, A.P. Baddorf, T. Zhao, Y.H. Chu, Ramamoorthy Ramesh, E.A. Eliseev, A.N. Morozovska, and S.V. Kalinin. "Spatially resolved mapping of ferroelectric switching behavior in self-assembled multiferroic nanostructures: Strain, size, and interface effects." Nanotechnology 18 (2007).
Jia, C.-L., V. Nagarajan, J.-Q. He, L. Houben, T. Zhao, Ramamoorthy Ramesh, K. Urban, and R. Waser. "Unit-cell scale mapping of ferroelectricity and tetragonality in epitaxial ultrathin ferroelectric films." Nature Materials 6 (2007) 64-69.