Universität zu Köln

Buchhold, Michael ORCID: 0000-0001-5194-9388, Diehl, Sebastian and Altland, Alexander ORCID: 0000-0002-2991-4805 (2018). Vanishing Density of States in Weakly Disordered Weyl Semimetals. Phys. Rev. Lett., 121 (21). COLLEGE PK: AMER PHYSICAL SOC. ISSN 1079-7114

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Abstract

The Brillouin zone of the clean Weyl semimetal contains points at which the density of states (DOS) vanishes. Previous work suggested that below a certain critical concentration of impurities this feature is preserved including in the presence of disorder. This result got criticized for its neglect of rare disorder fluctuations which might bind quantum states and hence generate a finite DOS. We here show that in spite of their existence these states are so fragile that their contribution effectively vanishes when averaged over continuous disorder distributions. This means that the integrity of the nodal points remains protected for weak disorder.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Buchhold, Michael UNSPECIFIED orcid.org/0000-0001-5194-9388 UNSPECIFIED Diehl, Sebastian UNSPECIFIED UNSPECIFIED UNSPECIFIED Altland, Alexander UNSPECIFIED orcid.org/0000-0002-2991-4805 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-165563
DOI:	10.1103/PhysRevLett.121.215301
Journal or Publication Title:	Phys. Rev. Lett.
Volume:	121
Number:	21
Date:	2018
Publisher:	AMER PHYSICAL SOC
Place of Publication:	COLLEGE PK
ISSN:	1079-7114
Language:	English
Faculty:	Faculty of Mathematics and Natural Sciences
Divisions:	Faculty of Mathematics and Natural Sciences > Department of Physics > Institute for Theoretical Physics
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language FERMI ARCS; DEGENERATE SEMICONDUCTORS; CRITICAL-BEHAVIOR; DISCOVERY Multiple languages Physics, Multidisciplinary Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/16556