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  Terahertz transmission through TaAs single crystals in simultaneously applied magnetic and electric fields: Possible optical signatures of the chiral anomaly in a Weyl semimetal

Hütt, F., Kamenskyi, D., Neubauer, D., Shekhar, C., Felser, C., Dressel, M., et al. (2019). Terahertz transmission through TaAs single crystals in simultaneously applied magnetic and electric fields: Possible optical signatures of the chiral anomaly in a Weyl semimetal. Results in Physics, 102630, pp. 1-2. doi:10.1016/j.rinp.2019.102630.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0004-C79C-C Version Permalink: http://hdl.handle.net/21.11116/0000-0004-C79E-A
Genre: Journal Article

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 Creators:
Hütt, F.1, Author
Kamenskyi, D.1, Author
Neubauer, D.1, Author
Shekhar, C.2, Author              
Felser, C.3, Author              
Dressel, M.1, Author
Pronin, A.V.1, 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              

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Free keywords: Chiral anomaly, Topological semimetals, Weyl fermions
 Abstract: We report optical transmission measurements through a single crystal of the Weyl semimetal TaAs at terahertz frequencies. The measurements were performed at T=1.6 K using intense coherent light from a free-electron laser in high magnetic fields. We detected small but measurable changes in the sample's transparency upon applying dc voltage (current) to the sample. In a constant magnetic field, the sign of the transmission change depends on the current direction. The effect disappears in zero magnetic field. These observations are qualitatively consistent with theory predictions for optical signatures of the chiral anomaly in a Weyl semimetal. © 2019 The Authors

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Language(s): eng - English
 Dates: 2019-09-052019-09-05
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: DOI: 10.1016/j.rinp.2019.102630
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Title: Results in Physics
Source Genre: Journal
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Pages: - Volume / Issue: - Sequence Number: 102630 Start / End Page: 1 - 2 Identifier: -