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20 April 2024 |
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Anisotropic Magnetotransport and Exotic Longitudinal Linear Magnetoresistance in WTe2 Crystals | | Yanfei Zhao
; Haiwen Liu
; Jiaqiang Yan
; Wei An
; Jun Liu
; Xi Zhang
; Hua Jiang
; Qing Li
; Yong Wang
; Xin-Zheng Li
; David Mandrus
; X. C. Xie
; Minghu Pan
; Jian Wang
; | | Date: |
16 Feb 2015 | | Abstract: | WTe2 semimetal, as a typical layered transition-metal dichalcogenide, has
recently attracted much attention due to the extremely large, non-saturating
parabolic magnetoresistance in perpendicular field. Here, we report a
systematic study of the angular dependence of the magnetoresistance in WTe2
single crystal. The violation of the Kohler rule and a significant anisotropic
magnetotransport behavior in different magnetic field directions are observed.
Surprisingly, when the applied field is parallel to the tungsten chains of
WTe2, an exotic large longitudinal linear magnetoresistance as high as 1200% at
15 T and 2 K is identified. Violation of the Kohler rule in transverse
magnetoresistance can be understood based on a dual effect of the excitons
formation and thermal activation, while large longitudinal linear
magnetoresistance reflects perfectly the scattering and nesting of quasi-1D
nature of this balanced hole-electron system. Our work will stimulate studies
of such double-carrier correlated material and corresponding quantum physics. | | Source: | arXiv, 1502.4465 | | Services: | Forum | Review | PDF | Favorites | |
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