Optical and magnetic response of ultrathin film topological insulators in tilted magnetic field

被引：1

作者：

Aftab, Tayyaba ^{[1
]}

机构：

[1] Allama Iqbal Open Univ, Dept Phys, Islamabad, Pakistan

来源：

PHYSICA B-CONDENSED MATTER | 2022年 / 633卷

关键词：

Condensed matter physics; Thin film of topological insulator; Topological materials; Magnetic response; Faradays rotation;

D O I：

10.1016/j.physb.2022.413754

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Faraday's rotation and magnetic susceptibility of an ultrathin film of topological insulator, placed in tilted magnetic field, are studied. A Hall effect analogue is studied in terms of Faraday's rotation. It is an isotropic response and tunable with magnetic field. Susceptibility has three contributions; spin, orbital and spin-orbital. All three contributions are calculated for magnetic field tilted at an angle.. with respect to the perpendicular axis on the plane. Spin susceptibility for low temperature varies directly with Fermi energy, orbital part show diamagnetic divergence and spin orbital contribution arises as a step function at Fermi energy.

引用

页数：7

共 19 条

[1] Anisotropic magnetic response of Weyl semimetals in a topological insulator multilayer [J].