Fermi surface investigation of the semimetal TaAs2

被引：7

作者：

Butcher, T. A. ^{[1
,2
,5
]}

Hornung, J. ^{[1
,2
]}

Foerster, T. ^{[1
]}

Uhlarz, M. ^{[1
]}

Klotz, J. ^{[1
]}

Sheikin, I ^{[3
]}

Wosnitza, J. ^{[1
,2
]}

Kaczorowski, D. ^{[4
]}

机构：

[1] Helmholtz Zentrum Dresden Rossendorf, Hochfeld Magnetlab Dresden HLD EMFL, D-01328 Dresden, Germany

[2] Tech Univ Dresden, Inst Festkorper & Mat Phys, D-01062 Dresden, Germany

[3] UGA, CNRS, LNCMI EMFL, F-38042 Grenoble, France

[4] Polish Acad Sci, Inst Low Temp & Struct Res, PL-50950 Wroclaw, Poland

[5] Trinity Coll Dublin, Sch Phys, Dublin 2, Ireland

来源：

PHYSICAL REVIEW B | 2019年 / 99卷 / 24期

基金：

英国工程与自然科学研究理事会;

关键词：

INHOMOGENEOUS CURRENT; ARSENIDES; TRANSPORT;

D O I：

10.1103/PhysRevB.99.245112

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The transversal magnetoresistance associated with the semimetal TaAs2 shows a parabolic field dependence that rises unrestrictedly to 2800 at 14 T and 1.8 K. Here, we report the results of a comprehensive quantum-oscillation study. Angular-dependent de Haas-van Alphen (dHvA) data were obtained with the method of cantilever-torque magnetometry. These were compared with the results of density-functional theory calculations, which predict a Fermi surface with two kinds of electron pockets, as well as two types of hole pockets. Only the electron pockets could be experimentally verified, whereas no evidence for the hole pockets is present in the measured dHvA frequencies.

引用

页数：6

共 27 条

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