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Quasi-1D van der Waals Antiferromagnetic CrZr4 Te14 with Large In-Plane Anisotropic Negative Magnetoresistance.
Fang, Yuqiang; Yang, Ke; Zhang, Enze; Liu, Shanshan; Jia, Zehao; Zhang, Yuda; Wu, Hua; Xiu, Faxian; Huang, Fuqiang.
Afiliação
  • Fang Y; State Key Laboratory of High-Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics Chinese Academy of Sciences, Shanghai, 200050, P. R. China.
  • Yang K; College of Science, University of Shanghai for Science and Technology, Shanghai, 200093, P. R. China.
  • Zhang E; State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Shanghai, 200433, P. R. China.
  • Liu S; State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Shanghai, 200433, P. R. China.
  • Jia Z; State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Shanghai, 200433, P. R. China.
  • Zhang Y; Shanghai Qi Zhi Institute, Shanghai, 200232, P. R. China.
  • Wu H; State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Shanghai, 200433, P. R. China.
  • Xiu F; Shanghai Qi Zhi Institute, Shanghai, 200232, P. R. China.
  • Huang F; Shanghai Qi Zhi Institute, Shanghai, 200232, P. R. China.
Adv Mater ; 34(24): e2200145, 2022 Jun.
Article em En | MEDLINE | ID: mdl-35338784
ABSTRACT
The discovery of 2D van der Waals (vdW) magnetic materials is of great significance to explore intriguing 2D magnetic physics and develop innovative spintronic devices. In this work, a new quasi-1D vdW layered compound CrZr4 Te14 is successfully synthesized. Owing to the existence of 1D [CrTe2 ] and [ZrTe3 ] chains along the b-axis, CrZr4 Te14 crystals show strong anisotropy of phonon vibrations, electrical transport, and magnetism. Density functional theory calculations reveal the ferromagnetic (FM) coupling within the [CrTe2 ] chain, while the interchain and interlayer couplings are both weakly antiferromagnetic (AF). Notably, a large intrinsic negative magnetoresistance (nMR) of -56% is achieved at 2 K under 9 T, and the in-plane anisotropic factor of nMR can reach up to 8.2 in the CrZr4 Te14 device. The 1D FM chains and anisotropic nMR effect make CrZr4 Te14 an interesting platform for exploring novel polarization-sensitive spintronics.
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2022 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2022 Tipo de documento: Article