Condensed matter realization of the axial magnetic effect

被引：118

作者：

Chernodub, Maxim N. ^{[1
,2
]}

Cortijo, Alberto ^{[3
]}

Grushin, Adolfo G. ^{[4
]}

Landsteiner, Karl ^{[5
]}

Vozmediano, Maria A. H. ^{[3
]}

机构：

[1] Univ Tours, CNRS, Lab Math & Phys Theor, F-37200 Tours, France

[2] Univ Ghent, Dept Phys & Astron, B-9000 Ghent, Belgium

[3] CSIC, Inst Ciencia Mat Madrid, E-28049 Madrid, Spain

[4] Max Planck Inst Phys Komplexer Syst, D-01187 Dresden, Germany

[5] Inst Fis Teor UAM CSIC, E-28049 Madrid, Spain

来源：

PHYSICAL REVIEW B | 2014年 / 89卷 / 08期

关键词：

DOPED TOPOLOGICAL INSULATOR; SINGLE DIRAC CONE; SURFACE;

D O I：

10.1103/PhysRevB.89.081407

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The axial magneticeffect, i.e., the generation of an energy current parallel to an axial magnetic field coupling with opposite signs to left-and right-handed fermions, is a nondissipative transport phenomenon intimately related to the gravitational contribution to the axial anomaly. An axial magnetic field emerges naturally in condensed matter in so-called Weyl semimetals. We present a measurable implementation of the axial magnetic effect. We show that the edge states of a Weyl semimetal at finite temperature possess a temperature dependent angular momentum in the direction of the vector potential intrinsic to the system. Such a realization provides a plausible context for the experimental confirmation of the elusive gravitational anomaly.

引用

页数：5

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