Large linear magnetoresistance in Dirac semimetal Cd3As2 with Fermi surfaces close to the Dirac points

被引：206

作者：

Feng, Junya ^{[1
]}

Pang, Yuan ^{[1
]}

Wu, Desheng ^{[1
]}

Wang, Zhijun ^{[1
]}

Weng, Hongming ^{[1
]}

Li, Jianqi ^{[1
]}

Dai, Xi ^{[1
]}

Fang, Zhong ^{[1
]}

Shi, Youguo ^{[1
]}

Lu, Li ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Collaborat Innovat Ctr Quantum Matter, Beijing 100190, Peoples R China

来源：

PHYSICAL REVIEW B | 2015年 / 92卷 / 08期

关键词：

GIANT MAGNETORESISTANCE; QUANTUM; CRYSTAL; INTERFERENCE; MOBILITY;

D O I：

10.1103/PhysRevB.92.081306

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We investigated the magnetoresistive behavior of an ideal Dirac semimetal-high-quality single crystals of Cd3As2 with a Fermi level very close to the Dirac point. A large linear magnetoresistance (LMR), up to 3100% in a magnetic field of 14 T, was observed at a temperature of T = 2 K. The detailed field and temperature dependencies reveal that the LMR occurs only when the Zeeman energy surpasses the thermal energy. Our result hints that the field-induced relative shifting of the two Weyl-Fermi surfaces in each Dirac cone in momentum space is likely responsible for the LMR behavior.

引用

页数：5

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