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Discovery of a magnetic conductive interface in PbZr0.2Ti0.8O3 /SrTiO3 heterostructures.
Zhang, Yi; Xie, Lin; Kim, Jeongwoo; Stern, Alex; Wang, Hui; Zhang, Kui; Yan, Xingxu; Li, Linze; Liu, Henry; Zhao, Gejian; Chi, Hang; Gadre, Chaitanya; Lin, Qiyin; Zhou, Yichun; Uher, Ctirad; Chen, Tingyong; Chu, Ying-Hao; Xia, Jing; Wu, Ruqian; Pan, Xiaoqing.
Afiliação
  • Zhang Y; Department of Chemical Engineering and Materials Science, University of California, Irvine, CA, 92697, USA.
  • Xie L; National Laboratory of Solid State Microstructures and College of Engineering and Applied Sciences, Nanjing University, Nanjing, Jiangsu, 210093, China.
  • Kim J; Department of Physics and Astronomy, University of California, Irvine, CA, 92697, USA.
  • Stern A; Department of Physics and Astronomy, University of California, Irvine, CA, 92697, USA.
  • Wang H; Department of Physics and Astronomy, University of California, Irvine, CA, 92697, USA.
  • Zhang K; Department of Chemical Engineering and Materials Science, University of California, Irvine, CA, 92697, USA.
  • Yan X; Department of Chemical Engineering and Materials Science, University of California, Irvine, CA, 92697, USA.
  • Li L; Department of Chemical Engineering and Materials Science, University of California, Irvine, CA, 92697, USA.
  • Liu H; Department of Materials Science and Engineering, National Chiao Tung University, HsinChu, 30010, Taiwan.
  • Zhao G; Department of Physics, Arizona State University, Tempe, Arizona, 85287, USA.
  • Chi H; Department of Physics, University of Michigan, Ann Arbor, MI, 48109, USA.
  • Gadre C; Department of Physics and Astronomy, University of California, Irvine, CA, 92697, USA.
  • Lin Q; Irvine Materials Research Institute, University of California, Irvine, CA, 92697, USA.
  • Zhou Y; School of Materials Science and Engineering, Xiangtan University, Xiangtan, 411105, Hunan, China.
  • Uher C; Department of Physics, University of Michigan, Ann Arbor, MI, 48109, USA.
  • Chen T; Department of Physics, Arizona State University, Tempe, Arizona, 85287, USA.
  • Chu YH; Department of Materials Science and Engineering, National Chiao Tung University, HsinChu, 30010, Taiwan.
  • Xia J; Department of Physics and Astronomy, University of California, Irvine, CA, 92697, USA.
  • Wu R; Department of Physics and Astronomy, University of California, Irvine, CA, 92697, USA.
  • Pan X; Department of Chemical Engineering and Materials Science, University of California, Irvine, CA, 92697, USA. xiaoqing.pan@uci.edu.
Nat Commun ; 9(1): 685, 2018 02 15.
Article em En | MEDLINE | ID: mdl-29449561
ABSTRACT
Emergent physical properties often arise at interfaces of complex oxide heterostructures due to the interplay between various degrees of freedom, especially those with polar discontinuities. It is desirable to explore if these structures may generate pure and controllable spin currents, which are needed to attain unmatched performance and energy efficiency in the next-generation spintronic devices. Here we report the emergence of a spin-polarized two-dimensional electron gas (SP-2DEG) at the interface of two insulators, SrTiO3 and PbZr0.2Ti0.8O3. This SP-2DEG is strongly localized at the interfacial Ti atoms, due to the interplay between Coulomb interaction and band bending, and can be tuned by the ferroelectric polarization. Our findings open a door for engineering ferroelectric/insulator interfaces to create tunable ferroic orders for magnetoelectric device applications and provide opportunities for designing multiferroic materials in heterostructures.
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2018 Tipo de documento: Article
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2018 Tipo de documento: Article