P Shafer

Publications

Viewing 16 of 16 publications

2020

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.

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2019

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.

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2018

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).

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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.

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2016

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.

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2010

Yang, S.Y, J Seidel, S.J Byrnes, P Shafer, C.-H Yang, M.D Rossell, P Yu, Y.-H Chu, J.F Scott, Joel W Ager, L.W Martin, and Ramamoorthy Ramesh. "Above-bandgap voltages from ferroelectric photovoltaic devices." Nature Nanotechnology 5 (2010) 143–147.

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2009

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.

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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.

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2008

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).

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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).

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2007

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).

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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).

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2005

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.

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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.

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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.

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