Quantum Hall effective action for the anisotropic Dirac semimetal

被引：4

作者：

Hoyos, Carlos ^{[1
,2
]}

Lier, Ruben ^{[3
,4
]}

Pena-Benitez, Francisco ^{[3
,4
]}

Surowka, Piotr ^{[3
,4
]}

机构：

[1] Univ Oviedo, Dept Phys, C Federico Garcia Lorca 18, ES-33007 Oviedo, Spain

[2] Univ Oviedo, Inst Ciencias & Tecnol Espaciales Asturias ICTEA, C Federico Garcia Lorca 18, ES-33007 Oviedo, Spain

[3] Max Planck Inst Phys Komplexer Syst, Nothnitzer Str 38, D-01187 Dresden, Germany

[4] Wurzburg Dresden Cluster Excellence Ctqmat, Nothnitzer Str 38, D-01187 Dresden, Germany

来源：

PHYSICAL REVIEW B | 2020年 / 102卷 / 08期

关键词：

Electromagnetic fields;

D O I：

10.1103/PhysRevB.102.081303

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present a study of Hall transport in semi-Dirac critical phases. The construction is based on a covariant formulation of relativistic systems with spatial anisotropy. Geometric data together with external electromagnetic fields is used to devise an expansion procedure that leads to a low-energy effective action consistent with the discrete PT symmetry that we impose. We use the action to discuss terms contributing to the Hall transport and extract the coefficients. We also discuss the associated scaling symmetry.

引用

页数：6

共 62 条

[1] Free-Surface Variational Principle for an Incompressible Fluid with Odd Viscosity [J].