Anisotropic magneto-transport and magnetic properties of low-temperature phase of TaTe2

被引：30

作者：

Chen, Hongxiang ^{[1
,2
]}

Li, Zhilin ^{[1
,2
]}

Guo, Liwei ^{[1
,2
]}

Chen, Xiaolong ^{[1
,2
,3
]}

机构：

[1] Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Res & Dev Ctr Funct Crystals, Beijing 100190, Peoples R China

[2] Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China

[3] Collaborat Innovat Ctr Quantum Matter, Beijing 100084, Peoples R China

来源：

EPL | 2017年 / 117卷 / 02期

基金：

中国国家自然科学基金;

关键词：

CHARGE-DENSITY WAVES; MAGNETORESISTANCE;

D O I：

10.1209/0295-5075/117/27009

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

TaTe2 is a quasi-2D charge density wave (CDW) compound with distorted-1T-type structure exhibiting double- zigzag chains. Here we report the Fermi surface topology of a lowtemperature phase of TaTe2 (LT-TaTe2) by anisotropic magneto-transport and magnetic measurements on high-quality single crystals. An anomalous large linear magnetoresistance up to 140% at 3K in 9T was observed, suggesting the existence of a small Fermi pocket in the Dirac cone state in quantum transport models. Moreover, strong magnetic anisotropy was observed for B perpendicular to(001) and B parallel to (001). Angle-dependent magnetoresistance and de Hass-van Alphen oscillations suggest the anisotropy of the normal Fermi surface and the small Fermi pocket in Dirac cone state. Copyright (C) EPLA, 2017

引用

页数：7

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