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Reversible non-volatile electronic switching in a near-room-temperature van der Waals ferromagnet.
Wu, Han; Chen, Lei; Malinowski, Paul; Jang, Bo Gyu; Deng, Qinwen; Scott, Kirsty; Huang, Jianwei; Ruff, Jacob P C; He, Yu; Chen, Xiang; Hu, Chaowei; Yue, Ziqin; Oh, Ji Seop; Teng, Xiaokun; Guo, Yucheng; Klemm, Mason; Shi, Chuqiao; Shi, Yue; Setty, Chandan; Werner, Tyler; Hashimoto, Makoto; Lu, Donghui; Yilmaz, Turgut; Vescovo, Elio; Mo, Sung-Kwan; Fedorov, Alexei; Denlinger, Jonathan D; Xie, Yaofeng; Gao, Bin; Kono, Junichiro; Dai, Pengcheng; Han, Yimo; Xu, Xiaodong; Birgeneau, Robert J; Zhu, Jian-Xin; da Silva Neto, Eduardo H; Wu, Liang; Chu, Jiun-Haw; Si, Qimiao; Yi, Ming.
Afiliação
  • Wu H; Department of Physics and Astronomy and Rice Center for Quantum Materials, Rice University, Houston, TX, USA.
  • Chen L; Department of Physics and Astronomy and Rice Center for Quantum Materials, Rice University, Houston, TX, USA.
  • Malinowski P; Department of Physics, University of Washington, Seattle, WA, USA.
  • Jang BG; Theoretical Division and Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, NM, USA.
  • Deng Q; Department of Advanced Materials Engineering for Information and Electronics, Kyung Hee University, Yongin, Republic of Korea.
  • Scott K; Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, PA, USA.
  • Huang J; Department of Physics, Yale University, New Haven, CT, USA.
  • Ruff JPC; Energy Sciences Institute, Yale University, West Haven, CT, USA.
  • He Y; Department of Physics and Astronomy, University of California, Davis, CA, USA.
  • Chen X; Department of Applied Physics, Yale University, New Haven, CT, USA.
  • Hu C; Department of Physics and Astronomy and Rice Center for Quantum Materials, Rice University, Houston, TX, USA.
  • Yue Z; Cornell High Energy Synchrotron Source, Cornell University, Ithaca, NY, USA.
  • Oh JS; Department of Physics, University of California, Berkeley, CA, USA.
  • Teng X; Department of Physics, University of California, Berkeley, CA, USA.
  • Guo Y; Department of Physics, University of Washington, Seattle, WA, USA.
  • Klemm M; Department of Materials Science and Engineering, University of Washington, Seattle, WA, USA.
  • Shi C; Department of Physics and Astronomy and Rice Center for Quantum Materials, Rice University, Houston, TX, USA.
  • Shi Y; Department of Physics and Astronomy and Rice Center for Quantum Materials, Rice University, Houston, TX, USA.
  • Setty C; Department of Materials Science and Engineering, University of Washington, Seattle, WA, USA.
  • Werner T; Department of Physics and Astronomy and Rice Center for Quantum Materials, Rice University, Houston, TX, USA.
  • Hashimoto M; Department of Physics and Astronomy and Rice Center for Quantum Materials, Rice University, Houston, TX, USA.
  • Lu D; Department of Physics and Astronomy and Rice Center for Quantum Materials, Rice University, Houston, TX, USA.
  • Yilmaz T; Department of Materials Science and NanoEngineering, Rice University, Houston, TX, USA.
  • Vescovo E; Department of Physics, University of Washington, Seattle, WA, USA.
  • Mo SK; Department of Physics and Astronomy and Rice Center for Quantum Materials, Rice University, Houston, TX, USA.
  • Fedorov A; Department of Applied Physics, Yale University, New Haven, CT, USA.
  • Denlinger JD; Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, CA, USA.
  • Xie Y; Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, CA, USA.
  • Gao B; National Synchrotron Light Source II, Brookhaven National Lab, Upton, NY, USA.
  • Kono J; National Synchrotron Light Source II, Brookhaven National Lab, Upton, NY, USA.
  • Dai P; Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA, USA.
  • Han Y; Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA, USA.
  • Xu X; Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA, USA.
  • Birgeneau RJ; Department of Physics and Astronomy and Rice Center for Quantum Materials, Rice University, Houston, TX, USA.
  • Zhu JX; Department of Physics and Astronomy and Rice Center for Quantum Materials, Rice University, Houston, TX, USA.
  • da Silva Neto EH; Department of Physics and Astronomy and Rice Center for Quantum Materials, Rice University, Houston, TX, USA.
  • Wu L; Department of Materials Science and NanoEngineering, Rice University, Houston, TX, USA.
  • Chu JH; Departments of Electrical and Computer Engineering, Rice University, Houston, TX, USA.
  • Si Q; Department of Physics and Astronomy and Rice Center for Quantum Materials, Rice University, Houston, TX, USA.
  • Yi M; Department of Materials Science and NanoEngineering, Rice University, Houston, TX, USA.
Nat Commun ; 15(1): 2739, 2024 Mar 28.
Article em En | MEDLINE | ID: mdl-38548765
ABSTRACT
Non-volatile phase-change memory devices utilize local heating to toggle between crystalline and amorphous states with distinct electrical properties. Expanding on this kind of switching to two topologically distinct phases requires controlled non-volatile switching between two crystalline phases with distinct symmetries. Here, we report the observation of reversible and non-volatile switching between two stable and closely related crystal structures, with remarkably distinct electronic structures, in the near-room-temperature van der Waals ferromagnet Fe5-δGeTe2. We show that the switching is enabled by the ordering and disordering of Fe site vacancies that results in distinct crystalline symmetries of the two phases, which can be controlled by a thermal annealing and quenching method. The two phases are distinguished by the presence of topological nodal lines due to the preserved global inversion symmetry in the site-disordered phase, flat bands resulting from quantum destructive interference on a bipartite lattice, and broken inversion symmetry in the site-ordered phase.
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2024 Tipo de documento: Article
Texto completo
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XML
PubMed Links
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2024 Tipo de documento: Article