Tunneling in Fermi systems with quadratic band crossing points

被引：18
|
作者：
Mandal, Ipsita [1 ,2 ]
机构：
[1] Univ Stavanger, Fac Sci & Technol, N-4036 Stavanger, Norway
[2] NORDITA, Roslagstullsbacken 23, SE-10691 Stockholm, Sweden
来源：
ANNALS OF PHYSICS | 2020年 / 419卷
关键词：
SHOT-NOISE;
D O I：
10.1016/j.aop.2020.168235
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We investigate the tunneling of quasiparticles through a rectangular potential barrier of finite height and width, in 2d and 3d semimetals with band structures consisting of a quadratic band crossing point. We compute the transmission coefficient at various incident angles, and also the conductivity and the Fano factor. We discuss the distinguishing signatures of these transport properties in comparison with other semimetals, as well as electrons in normal metals. (C) 2020 The Author(s). Published by Elsevier Inc.
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页数：14
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