Quantum oscillations in kagome metals CsTi3Bi5 and RbTi3Bi5

Zackary Rehfuss, Christopher Broyles, David Graf, Yongkang Li, Hengxin Tan, Zhen Zhao, Jiali Liu, Yuhang Zhang, Xiaoli Dong, Haitao Yang, Hongjun Gao, Binghai Yan, Sheng Ran

Research output: Contribution to journalArticlepeer-review

Abstract

We report quantum oscillation measurements on the kagome compounds ATi3Bi5 (A=Rb, Cs) in magnetic fields up to 41.5 T and temperatures down to 350 mK. In addition to the frequencies observed in previous studies, we have observed multiple unreported frequencies above 2000 T in CsTi3Bi5 using a tunnel diode oscillator technique. We compare these results against density functional theory calculations and find good agreement with the calculations in the number of peaks observed, frequency, and the dimensionality of the Fermi surface. For RbTi3Bi5 we have obtained a different quantum oscillation spectrum, although calculated quantum oscillation frequencies for the Rb compound are remarkably similar to the Cs compound, calling for further studies.

Original languageEnglish
Article number024003
Number of pages8
JournalPhysical Review Materials
Volume8
Issue number2
DOIs
StatePublished - Feb 2024

All Science Journal Classification (ASJC) codes

  • General Materials Science
  • Physics and Astronomy (miscellaneous)

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