Free-carrier dynamics in Au2Pb probed by optical conductivity measurements

R. Kemmler, R. Hübner, A. Löhle, D. Neubauer, I. Voloshenko, L. M. Schoop, M. Dressel, A. V. Pronin

Research output: Contribution to journalArticle

1 Scopus citations

Abstract

We measured the optical reflectivity of the Dirac material Au2Pb in a broad frequency range (30-48 000 cm-1) for temperatures between 9 and 300 K. The optical conductivity, computed from the reflectivity, is dominated by free-carrier contributions from topologically trivial bulk bands at all temperatures. The temperature-independent total plasma frequency of these carriers is eV. Overall, optical response of Au2Pb is typically metallic with no signs of localization and bad-metal behavior.

Original languageEnglish (US)
Article number485403
JournalJournal of Physics Condensed Matter
Volume30
Issue number48
DOIs
StatePublished - Nov 12 2018

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics

Keywords

  • Dirac materials
  • optical conductivity
  • topological semimetals

Fingerprint Dive into the research topics of 'Free-carrier dynamics in Au<sub>2</sub>Pb probed by optical conductivity measurements'. Together they form a unique fingerprint.

  • Cite this

    Kemmler, R., Hübner, R., Löhle, A., Neubauer, D., Voloshenko, I., Schoop, L. M., Dressel, M., & Pronin, A. V. (2018). Free-carrier dynamics in Au2Pb probed by optical conductivity measurements. Journal of Physics Condensed Matter, 30(48), [485403]. https://doi.org/10.1088/1361-648X/aae7b1