Published November 23, 2018
| Submitted + Published
Journal Article
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Vanishing density of states in weakly disordered Weyl semimetals
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.
Additional Information
© 2018 American Physical Society. Received 6 May 2018; published 19 November 2018. We thank P. W. Brouwer, V. Gurarie, R. Nandkishore, L. Radzihovsky, G. Refael, B. Sbierski, J. H. Wilson, K. Ziegler, and M. Zirnbauer for discussions. Work supported by the German Research Foundation (DFG) through the Institutional Strategy of the University of Cologne within the German Excellence Initiative (ZUK 81) and CRC/TR 183—Entangled states of matter (project A02). M. B. acknowledges support from the Alexander von Humboldt foundation.Attached Files
Published - PhysRevLett.121.215301.pdf
Submitted - 1805.00018.pdf
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Additional details
- Eprint ID
- 90180
- Resolver ID
- CaltechAUTHORS:20181009-090700314
- ZUK 81
- Deutsche Forschungsgemeinschaft (DFG)
- CRC/TR 183
- Deutsche Forschungsgemeinschaft (DFG)
- Alexander von Humboldt Foundation
- Created
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2018-10-09Created from EPrint's datestamp field
- Updated
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2021-11-16Created from EPrint's last_modified field