Publications

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Conference Paper
Zhao, Y., S. Zhang, P. Li, A. Chen, D. Li, S. Rizwan, J. Zhang, J. Seidel, T. Qu, Z. Luo, Q. He, L. Yang, Y. Wu, X. Jin, C. Gao, X. Han, and Ramamoorthy Ramesh. "Electric-field control of magnetism in multiferroic heterostructures." 2015 IEEE International Magnetics Conference, INTERMAG 2015. Institute of Electrical and Electronics Engineers Inc., 2015.
Journal Article
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.
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).
Seidel, J., L.W. Martin, Q. He, Q. Zhan, Y.-H. Chu, A. Rother, M.E. Hawkridge, P. Maksymovych, P. Yu, M. Gajek, N. Balke, S.V. Kalinin, S. Gemming, F. Wang, G. Catalan, J.F. Scott, N.A. Spaldin, J. Orenstein, and Ramamoorthy Ramesh. "Conduction at domain walls in oxide multiferroics." Nature Materials 8 (2009) 229-234.
Heron, J.T., J.L. Bosse, Q. He, Y. Gao, M. Trassin, L. Ye, J.D. Clarkson, C. W Wang, J. F Liu, S. Salahuddin, D.C. Ralph, D.G. Schlom, J. Íñiguez, B.D. Huey, and Ramamoorthy Ramesh. "Deterministic switching of ferromagnetism at room temperature using an electric field." Nature 516 (2014) 370-373.
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).
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).
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.
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.
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).
Chu, Y.-H., L.W. Martin, M.B. Holcomb, M. Gajek, S.-J. Han, Q. He, N. Balke, C.-H. Yang, D. Lee, W. Hu, Q. Zhan, P.-L. Yang, A. Fraile-Rodríguez, A. Scholl, S.X. Wang, and Ramamoorthy Ramesh. "Electric-field control of local ferromagnetism using a magnetoelectric multiferroic." Nature Materials 7 (2008) 478-482.
Chu, Y.-H., L.W. Martin, M.B. Holcomb, M. Gajek, S.-J. Han, Q. He, N. Balke, C.-H. Yang, D. Lee, W. Hu, Q. Zhan, P.-L. Yang, A. Fraile-Rodríguez, A. Scholl, S.X. Wang, and Ramamoorthy Ramesh. "Electric-field control of local ferromagnetism using a magnetoelectric multiferroic (Nature Materials (2008) 7, (478-482))." Nature Materials 7 (2008) 678.
Zhang, S., Y.G. Zhao, P.S. Li, J.J. Yang, S. Rizwan, J.X. Zhang, J. Seidel, T.L. Qu, Y.J. Yang, Z.L. Luo, Q. He, T. Zou, Q.P. Chen, J.W. Wang, L.F. Yang, Y. Sun, Y.Z. Wu, X. Xiao, X.F. Jin, J. Huang, C. Gao, X.F. Han, and Ramamoorthy Ramesh. "Electric-field control of nonvolatile magnetization in Co 40Fe 40B 20/Pb(Mg 1/3Nb 2/3) 0.7Ti 0.3O 3 structure at room temperature." Physical Review Letters 108 (2012).
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).
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).
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.
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.
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).
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.
He, Q., C.-H. Yeh, J.-C. Yang, G. Singh-Bhalla, C.-W. Liang, P.-W. Chiu, G. Catalan, L.W. Martin, Y.-H. Chu, J.F. Scott, and Ramamoorthy Ramesh. "Magnetotransport at domain walls in BiFeO 3." Physical Review Letters 108 (2012).
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).
He, Q., E. Arenholz, A. Scholl, Y.-H. Chu, and Ramamoorthy Ramesh. "Nanoscale characterization of emergent phenomena in multiferroics." Current Opinion in Solid State and Materials Science 16 (2012) 216-226.
Chu, Y.-H., Q. He, C.-H. Yang, P. Yu, L.W. Martin, P. Shafer, and Ramamoorthy Ramesh. "Nanoscale control of domain architectures in BiFeO 3 thin films." Nano Letters 9 (2009) 1726-1730.
Zhang, J.X., R.J. Zeches, Q. He, Y.-H. Chu, and Ramamoorthy Ramesh. "Nanoscale phase boundaries: A new twist to novel functionalities." Nanoscale 4 (2012) 6196-6204.
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).

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