Quantum diffusion of massive Dirac fermions induced by symmetry breaking

doi:10.1103/PhysRevB.104.075427

ITP OpenIR > SCI期刊论文

	Zhang, Ting 1; Tian, Chushun2,3 ; Sheng, Ping 1
	Quantum diffusion of massive Dirac fermions induced by symmetry breaking
Source Publication	PHYSICAL REVIEW B
Language	英语
Keyword	TRANSPORT LOCALIZATION
Abstract	We show that when a two-dimensional (2D) Dirac fermion moves in disordered environments, the weak time-reversal symmetry breaking by a small mass gives rise to the diffusive wave propagation, i.e., that the wave-packet spread obeys the diffusive law of Einstein, up to a-practically inaccessible-exponentially large length. Strikingly, the diffusion constant is larger than that given by the Boltzmann kinetic theory, and grows unboundedly as the energy-to-mass ratio increases. This diffusive phenomenon is of quantum nature and different from weak antilocalization. It implies a new type of transport in topological insulators at zero temperature.
	2021
ISSN	2469-9950
Volume	104 Issue:7 Pages:75427
Cooperation Status	国内
Subject Area	Materials Science ; Physics
MOST Discipline Catalogue	Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
DOI	10.1103/PhysRevB.104.075427
Indexed By	SCIE
Citation statistics
Document Type	期刊论文
Identifier	http://ir.itp.ac.cn/handle/311006/27454
Collection	SCI期刊论文
Affiliation	1.Hong Kong Univ Sci & Technol, Dept Phys, Kowloon, Clear Water Bay, Hong Kong, Peoples R China 2.Hong Kong Univ Sci & Technol, Inst Adv Study, Kowloon, Clear Water Bay, Hong Kong, Peoples R China 3.Chinese Acad Sci, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 4.Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China
Recommended Citation GB/T 7714	Zhang, Ting,Tian, Chushun,Sheng, Ping. Quantum diffusion of massive Dirac fermions induced by symmetry breaking[J]. PHYSICAL REVIEW B,2021,104(7):75427.
APA	Zhang, Ting,Tian, Chushun,&Sheng, Ping.(2021).Quantum diffusion of massive Dirac fermions induced by symmetry breaking.PHYSICAL REVIEW B,104(7),75427.
MLA	Zhang, Ting,et al."Quantum diffusion of massive Dirac fermions induced by symmetry breaking".PHYSICAL REVIEW B 104.7(2021):75427.

Files in This Item:
There are no files associated with this item.

If you have any objections to this item, please fill out the form below and the administrator will contact you as soon as possible.
Content:
Email：	*
Institution:
Verification Code:	Refresh

Any comments and suggestions are welcomed.
Title:	*
Content:
Email：	*
Verification Code:	Refresh

中国科学院理论物理研究所机构知识库