English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Effect of topology on quasiparticle interactions in the Weyl semimetal WP2

Wulferding, D., Lemmens, P., Büscher, F., Schmeltzer, D., Felser, C., & Shekhar, C. (2020). Effect of topology on quasiparticle interactions in the Weyl semimetal WP2. Physical Review B, 102(7): 075116, pp. 1-9. doi:10.1103/PhysRevB.102.075116.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/21.11116/0000-0007-0C04-8 Version Permalink: http://hdl.handle.net/21.11116/0000-0007-0C06-6
Genre: Journal Article

Files

show Files

Locators

show

Creators

show
hide
 Creators:
Wulferding, Dirk1, Author
Lemmens, Peter1, Author
Büscher, Florian1, Author
Schmeltzer, David1, Author
Felser, Claudia2, Author              
Shekhar, Chandra3, Author              
Affiliations:
1External Organizations, ou_persistent22              
2Claudia Felser, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863429              
3Chandra Shekhar, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863428              

Content

show
hide
Free keywords: -
 Abstract: We compare two crystallographic phases of the low-dimensional WP2 to better understand features of electron-electron and electron-phonon interactions in topological systems. The topological beta phase, a Weyl semimetal with a giant magnetoresistance, shows a larger intensity of electronic Raman scattering compared to the topologically trivial alpha phase. This intensity collapses for T < T* = 20 K, which evidences a crossover in the topological phase from marginal quasiparticles to a coherent low-temperature regime. In contrast, the topologically trivial alpha phase shows more pronounced signatures of electron-phonon interaction, i.e., an enhanced phonon linewidth and deviations from conventional anharmonicity in an intermediate-temperature regime. These effects provide evidence for an interesting interplay of electronic correlations and electron-phonon coupling. Interband and intraband electronic fluctuations can be distinguish by the energy range of electronic Raman scattering and their temperature dependence. Furthermore, we demonstrate a decisive dependency on symmetry that is critical to understand their interplay.

Details

show
hide
Language(s): eng - English
 Dates: 2020-08-132020-08-13
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Physical Review B
  Abbreviation : Phys. Rev. B
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Woodbury, NY : American Physical Society
Pages: - Volume / Issue: 102 (7) Sequence Number: 075116 Start / End Page: 1 - 9 Identifier: ISSN: 1098-0121
CoNE: https://pure.mpg.de/cone/journals/resource/954925225008