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

Huett F, Kamenskyi D, Neubauer D, Shekhar C, Felser C, Dressel M, Pronin A (2019)

Publication Type: Journal article

Publication year: 2019

Journal

Results in Physics Elsevier

Book Volume: 15

Article Number: 102630

DOI: 10.1016/j.rinp.2019.102630

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.

Involved external institutions

Universität Stuttgart DE Germany (DE) Radboud University Nijmegen NL Netherlands (NL) Max-Planck-Institut für Chemische Physik fester Stoffe (MPI CPfS) / Max Planck Institute for Chemical Physics of Solids DE Germany (DE)

How to cite

APA:

Huett, F., Kamenskyi, D., Neubauer, D., Shekhar, C., Felser, C., Dressel, M., & Pronin, A. (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, 15. https://doi.org/10.1016/j.rinp.2019.102630

MLA:

Huett, Felix, et al. "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 15 (2019).

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