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  Conservation of chirality at a junction between two Weyl semimetals

Tchoumakov, S., Bujnowski, B., Noky, J., Gooth, J., Grushin, A., & Cayssol, J. (2021). Conservation of chirality at a junction between two Weyl semimetals. Physical Review B, 104(12): 125308, pp. 1-11. doi:10.1103/PhysRevB.104.125308.

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 Creators:
Tchoumakov, S.1, Author
Bujnowski, B.1, Author
Noky, J.2, Author              
Gooth, Johannes3, Author              
Grushin, A.G.1, Author
Cayssol, J.1, Author
Affiliations:
1External Organizations, ou_persistent22              
2Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863425              
3Nanostructured Quantum Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_3018212              

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 Abstract: In Weyl semimetals the location of linear band crossings, the Weyl cones, is not bound to any high-symmetry point of the Brillouin zone, unlike the Dirac nodes in graphene. This flexibility is advantageous for valleytronics, where information is encoded in the valleys of the band structure when intervalley scattering is weak. However, if numerous Weyl cones coexist the encoded information can decohere rapidly because of band mixing. Here, we investigate how the helical isospin texture of Weyl cones affects valleytronics in heterojunctions of Weyl materials, and show how the chirality of this isospin texture can serve to encode information. © 2021 American Physical Society

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Language(s): eng - English
 Dates: 2021-09-232021-09-23
 Publication Status: Published in print
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 Rev. Type: -
 Identifiers: DOI: 10.1103/PhysRevB.104.125308
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Title: Physical Review B
  Abbreviation : Phys. Rev. B
Source Genre: Journal
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Publ. Info: Woodbury, NY : American Physical Society
Pages: - Volume / Issue: 104 (12) Sequence Number: 125308 Start / End Page: 1 - 11 Identifier: ISSN: 1098-0121
CoNE: https://pure.mpg.de/cone/journals/resource/954925225008