Large magnetoresistance in topological insulator candidate TaSe3

Yong Zhang; Tongshuai Zhu; Haijun Bu; Zixiu Cai; Chuanying Xi; Bo Chen; Boyuan Wei; Dongjing Lin; Hangkai Xie; Muhammad Naveed; Xiaoxiang Xi; Fucong Fei; Haijun Zhang; Fengqi Song

doi:10.1063/5.0015490

AIP Advances (Sep 2020)

Large magnetoresistance in topological insulator candidate TaSe3

Yong Zhang,
Tongshuai Zhu,
Haijun Bu,
Zixiu Cai,
Chuanying Xi,
Bo Chen,
Boyuan Wei,
Dongjing Lin,
Hangkai Xie,
Muhammad Naveed,
Xiaoxiang Xi,
Fucong Fei,
Haijun Zhang,
Fengqi Song

Affiliations

Yong Zhang: National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, and School of Physics, Nanjing University, Nanjing 210093, China
Tongshuai Zhu: National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, and School of Physics, Nanjing University, Nanjing 210093, China
Haijun Bu: National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, and School of Physics, Nanjing University, Nanjing 210093, China
Zixiu Cai: School of Physics, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
Chuanying Xi: High Magnetic Field Laboratory, Chinese Academy of Science, Hefei, 230031 Anhui, China
Bo Chen: National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, and School of Physics, Nanjing University, Nanjing 210093, China
Boyuan Wei: National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, and School of Physics, Nanjing University, Nanjing 210093, China
Dongjing Lin: National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, and School of Physics, Nanjing University, Nanjing 210093, China
Hangkai Xie: National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, and School of Physics, Nanjing University, Nanjing 210093, China
Muhammad Naveed: National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, and School of Physics, Nanjing University, Nanjing 210093, China
Xiaoxiang Xi: National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, and School of Physics, Nanjing University, Nanjing 210093, China
Fucong Fei: National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, and School of Physics, Nanjing University, Nanjing 210093, China
Haijun Zhang: National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, and School of Physics, Nanjing University, Nanjing 210093, China
Fengqi Song: National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, and School of Physics, Nanjing University, Nanjing 210093, China

DOI: https://doi.org/10.1063/5.0015490
Journal volume & issue: Vol. 10, no. 9
pp. 095314 – 095314-8

Abstract

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Large unsaturated magnetoresistance (XMR) with magnitude ∼103% is observed in topological insulator candidate TaSe3 from our high field (up to 38 T) measurements. Two oscillation modes, associated with one hole pocket and two electron pockets in the bulk, respectively, are detected from our Shubnikov-de Hass measurements, consistent with our first-principles calculations. With the detailed Hall measurements performed, our two-band model analysis exhibits an imperfect density ratio nh/ne ≈ 0.9 at T < 20 K, which suggests that the carrier compensations account for the XMR in TaSe3.

Published in AIP Advances

ISSN: 2158-3226 (Online)
Publisher: AIP Publishing LLC
Country of publisher: United States
LCC subjects: Science: Physics
Website: http://aipadvances.aip.org/

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