Evidence of anisotropic three-dimensional weak localization in <math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi>TiSe</mi><mn>2</mn></msub></math> nanoflakes

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

doi:10.1103/mwfd-vhqd

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

Xiaocui Wang^1,2, Yang Yang^3,4, Yongkai Li^1,2, Guangtong Liu^5,6,7, Junxi Duan^1,2, Zhiwei Wang^1,2,*, Li Lu^5,6,7, and Fan Yang ^3,4,†

¹Key Laboratory of Advanced Optoelectronic Quantum Architecture and Measurement, Ministry of Education, School of Physics, Beijing Institute of Technology, Beijing 100081, China
²Micronano Center, Beijing Key Laboratory of Nanophotonics and Ultrafine Optoelectronic Systems, Beijing Institute of Technology, Beijing 100081, China
³Center for Joint Quantum Studies and Department of Physics, School of Science, Tianjin University, Tianjin 300350, China
⁴Tianjin Key Laboratory of Low Dimensional Materials Physics and Preparing Technology, Department of Physics, Tianjin University, Tianjin 300350, China
⁵Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
⁶School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
⁷Songshan Lake Materials Laboratory, Dongguan, Guangdong 523808, China

^*Contact author: zhiweiwang@bit.edu.cn
^†Contact author: fanyangphys@tju.edu.cn

PDF

Phys. Rev. B 112, 165204 – Published 27 October, 2025

DOI: https://doi.org/10.1103/mwfd-vhqd

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.

Physical Review B

Export citation

Export citation

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

Abstract

Physics Subject Headings (PhySH)

Authorization Required

Other Options

Supplemental Material (Subscription Required)

References (Subscription Required)

Outline

Information

Filter

Filter

Article Lookup

Enter a citation

Evidence of anisotropic three-dimensional weak localization in TiSe2 nanoflakes

Abstract

Physics Subject Headings (PhySH)

Authorization Required

Log in via your institution

Log in via APS Member Subscription

Other Options

Supplemental Material (Subscription Required)

References (Subscription Required)

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