Magnetic field induced thermal effect of phonons in graphene

被引：7
|
作者：
Peng, Feng [1 ]
机构：
[1] Beijing Univ Sci & Technol, Dept Phys, Beijing 100083, Peoples R China
来源：
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS | 2011年 / 248卷 / 06期
基金：
中国国家自然科学基金;
关键词：
electron-phonon interaction; graphene; heat capacity; magnetic field effects; thermal conductivity; FUNCTIONAL-INTEGRAL APPROACH; TRANSPORT; SYSTEMS;
D O I：
10.1002/pssb.201046427
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We investigate the effect of a magnetic field on the thermal properties of phonons in graphene. We calculate the heat capacity of the phonons using a generating functional technique, and find a new phenomenon that a staircase-like behaviour appears in the change of the phonon heat capacity as well as the thermal conductivity with the temperature. The width and height of each step are related to the magnetic field and the temperature. This may provide a scheme of controlling the thermal properties of graphene by a weak magnetic field. (C) 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
引用
收藏
页码：1388 / 1391
页数：4
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