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arXiv · 2411.13488

Evidence of anisotropic three-dimensional weak-localization in TiSe$_{2}$ nanoflakes

Xiaocui Wang·Yang Yang·Yongkai Li·Guangtong Liu·Junxi Duan·Zhiwei Wang·Li Lu·Fan Yang
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Abstract

TiSe$_2$ is a typical transition-metal dichalcogenide known for its charge-density wave order. In this study, we report the observation of an unusual anisotropic negative magnetoresistance in exfoliated TiSe$_2$ nanoflakes at low temperatures. Unlike the negative magnetoresistance reported in most other transition-metal dichalcogenides, our results cannot be explained by either the conventional two-dimensional weak localization effect or the Kondo effect. A comprehensive analysis of the data suggests that the observed anisotropic negative magnetoresistance in TiSe$_2$ flakes is most likely caused by the three-dimensional weak localization effect. Our findings contribute to a deeper understanding of the phase-coherent transport processes in TiSe$_2$.

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Xiaocui Wang, Yang Yang, Yongkai Li, Guangtong Liu, Junxi Duan, Zhiwei Wang, Li Lu, Fan Yang. 2024-11-20. Evidence of anisotropic three-dimensional weak-localization in TiSe$_{2}$ nanoflakes. https://doi.org/10.1103/mwfd-vhqd

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