Publications

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Journal Article
Jang, H.W., S.H. Baek, D. Ortiz, C.M. Folkman, R.R. Das, Y.H. Chu, P. Shafer, J.X. Zhang, S. Choudhury, V. Vaithyanathan, Y.B. Chen, D.A. Felker, M.D. Biegalski, M.S. Rzchowski, X.Q. Pan, D.G. Schlom, L.Q. Chen, Ramamoorthy Ramesh, and C.B. Eom. "Strain-induced polarization rotation in epitaxial (001) BiFeO3 thin films." Physical Review Letters 101 (2008).
Cruz, M.P., Y.H. Chu, J.X. Zhang, P.L. Yang, F. Zavaliche, Q. He, P. Shafer, L.Q. Chen, and Ramamoorthy Ramesh. "Strain control of domain-wall stability in epitaxial BiFeO3 (110) films." Physical Review Letters 99 (2007).
Zavaliche, F., P. Shafer, Ramamoorthy Ramesh, M.P. Cruz, R.R. Das, D.M. Kim, and C.B. Eom. "Polarization switching in epitaxial BiFeO 3 films." Applied Physics Letters 87 (2005) 1-3.
Shafer, P., F. Zavaliche, Y.-H. Chu, P.-L. Yang, M.P. Cruz, and Ramamoorthy Ramesh. "Planar electrode piezoelectric force microscopy to study electric polarization switching in BiFe O3." Applied Physics Letters 90 (2007).
Das, S., Y.L. Tang, Z. Hong, M.A.P. Gonçalves, M.R. McCarter, C. Klewe, K.X. Nguyen, F. Gómez-Ortiz, P. Shafer, E. Arenholz, V.A. Stoica, S.-L. Hsu, B. Wang, C. Ophus, J.F. Liu, C.T. Nelson, S. Saremi, B. Prasad, A.B. Mei, D.G. Schlom, J. Íñiguez, P. García-Fernández, D.A. Muller, L.Q. Chen, J. Junquera, L.W. Martin, and Ramamoorthy Ramesh. "Observation of room-temperature polar skyrmions." Nature 568 (2019) 368-372.
Yadav, A.K., C.T. Nelson, S.L. Hsu, Z. Hong, J.D. Clarkson, C.M. Schlepuëtz, A.R. Damodaran, P. Shafer, E. Arenholz, L.R. Dedon, D. Chen, A. Vishwanath, A.M. Minor, L.Q. Chen, J.F. Scott, L.W. Martin, and Ramamoorthy Ramesh. "Observation of polar vortices in oxide superlattices." Nature 530 (2016) 198-201.
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.
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.
Yadav, A.K., C.T. Nelson, S.L. Hsu, Z. Hong, J.D. Clarkson, C.M. Schlepütz, A.R. Damodaran, P. Shafer, E. Arenholz, L.R. Dedon, D. Chen, A. Vishwanath, A.M. Minor, L.Q. Chen, J.F. Scott, L.W. Martin, and Ramamoorthy Ramesh. "Erratum: Observation of polar vortices in oxide superlattices (Nature (2016) 530 (198-201) DOI:10.1038/nature16463)." Nature 534 (2016) 138.
Jang, H.W., S.H. Baek, D. Ortiz, C.M. Folkman, C.B. Eom, Y.H. Chu, P. Shafer, Ramamoorthy Ramesh, V. Vaithyanathan, and D.G. Schlom. "Epitaxial (001) BiFe O3 membranes with substantially reduced fatigue and leakage." Applied Physics Letters 92 (2008).
Cheema, S.S., D. Kwon, N. Shanker, dos Reis, S.-L. Hsu, J. Xiao, H. Zhang, R. Wagner, A. Datar, M.R. McCarter, C.R. Serrao, A.K. Yadav, G. Karbasian, C.-H. Hsu, A.J. Tan, L.-C. Wang, V. Thakare, X. Zhang, A. Mehta, E. Karapetrova, R.V. Chopdekar, P. Shafer, E. Arenholz, C. Hu, R. Proksch, Ramamoorthy Ramesh, J. Ciston, and S. Salahuddin. "Enhanced ferroelectricity in ultrathin films grown directly on silicon." Nature 580 (2020) 478-482.
Shafer, P., P. García-Fernández, P. Aguado-Puente, A.R. Damodaran, A.K. Yadav, C.T. Nelson, S.-L. Hsu, J.C. Wojdeł, J. Íñiguez, L.W. Martin, E. Arenholz, J. Junquera, and Ramamoorthy Ramesh. "Emergent chirality in the electric polarization texture of titanate superlattices." Proceedings of the National Academy of Sciences of the United States of America 115 (2018) 915-920.
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.
Jang, H.W., D. Ortiz, S.-H. Baek, C.M. Folkman, R.R. Das, P. Shafer, Y. H Chen, C.T. Nelson, X. Pan, Ramamoorthy Ramesh, and C.-B. Eom. "Domain engineering for enhanced ferroelectric properties of epitaxial (001) BiFeO thin films." Advanced Materials 21 (2009) 817-823.
Chen, Z., Z. Chen, C.-Y. Kuo, Y. Tang, L.R. Dedon, Q. Li, L. Zhang, C. Klewe, Y.-L. Huang, B. Prasad, A. Farhan, M. Yang, J.D. Clarkson, S. Das, S. Manipatruni, A. Tanaka, P. Shafer, E. Arenholz, A. Scholl, Y.-H. Chu, Z.Q. Qiu, Z. Hu, L.-H. Tjeng, Ramamoorthy Ramesh, L.-W. Wang, and L.W. Martin. "Complex strain evolution of polar and magnetic order in multiferroic BiFeO3 thin films." Nature Communications 9 (2018).
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.