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  Berry phase and band structure analysis of the Weyl semimetal NbP

Sergelius, P., Gooth, J., Baessler, S., Zierold, R., Wiegand, C., Niemann, A., et al. (2016). Berry phase and band structure analysis of the Weyl semimetal NbP. Scientific Reports, 6: 33859, pp. 1-6. doi:10.1038/srep33859.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002B-9FC6-2 Version Permalink: http://hdl.handle.net/21.11116/0000-0001-0F7F-2
Genre: Journal Article

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 Creators:
Sergelius, Philip1, Author
Gooth, Johannes1, Author
Baessler, Svenja1, Author
Zierold, Robert1, Author
Wiegand, Christoph1, Author
Niemann, Anna1, Author
Reith, Heiko1, Author
Shekhar, Chandra2, Author              
Felser, Claudia3, Author              
Yan, Binghai4, Author              
Nielsch, Kornelius1, Author
Affiliations:
1External Organizations, ou_persistent22              
2Chandra Shekhar, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863428              
3Claudia Felser, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863429              
4Binghai Yan, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863427              

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 Abstract: Weyl semimetals are often considered the 3D-analogon of graphene or topological insulators. The evaluation of quantum oscillations in these systems remains challenging because there are often multiple conduction bands. We observe de Haas-van Alphen oscillations with several frequencies in a single crystal of the Weyl semimetal niobium phosphide. For each fundamental crystal axis, we can fit the raw data to a superposition of sinusoidal functions, which enables us to calculate the characteristic parameters of all individual bulk conduction bands using Fourier transform with an analysis of the temperature and magnetic field-dependent oscillation amplitude decay. Our experimental results indicate that the band structure consists of Dirac bands with low cyclotron mass, a non-trivial Berry phase and parabolic bands with a higher effective mass and trivial Berry phase.

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Language(s): eng - English
 Dates: 2016-09-262016-09-26
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: ISI: 000384044000001
DOI: 10.1038/srep33859
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Title: Scientific Reports
  Abbreviation : Sci. Rep.
Source Genre: Journal
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Publ. Info: London, UK : Nature Publishing Group
Pages: - Volume / Issue: 6 Sequence Number: 33859 Start / End Page: 1 - 6 Identifier: ISSN: 2045-2322
CoNE: /journals/resource/2045-2322