Temperature dependence of acoustic phonons on ground state energy of the magnetopolaron in monolayer graphene

被引：10

作者：

Sun, Yong ^{[1
]}

Xiao, Jing-Lin ^{[1
]}

机构：

[1] Inner Mongolia Univ Nationalities, Inst Condensed Matter Phys, Tongliao 028043, Peoples R China

来源：

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES | 2020年 / 121卷

基金：

美国国家科学基金会;

关键词：

Graphene; Magnetopolaron; Linear combination operator; Quantum statistics theory; Temperature; TRANSPORT;

D O I：

10.1016/j.physe.2020.114122

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In the present work, we consider an electron strongly coupled with in-plane longitudinal acoustic (LA) phonons in monolayer graphene under an external magnetic field. The ground state energy (GSE) and the LA phonons' mean number are investigated as function of temperature, cut-off wavenumber and magnetic field using the quantum statistical theory (QST). It is found that the GSE of the magnetopolamn in monolayer graphene splits into two branches. The GSE and the LA mean phonon number increase with elevated temperature and are both an increasing function of the cut-off wavenumber and magnetic field.

引用

页数：4

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