Chiral Electronic Excitations in a Quasi-2D Rashba System BiTeI

A. C. Lee; B. Peng; K. Du; H. -H. Kung; B. Monserrat; S. -W. Cheong; C. J. Won; G. Blumberg

doi:10.1103/PhysRevB.105.L161105

Chiral Electronic Excitations in a Quasi-2D Rashba System BiTeI

Strongly Correlated Electrons 2022-04-27 v2

Authors: A. C. Lee , B. Peng , K. Du , H. -H. Kung , B. Monserrat , S. -W. Cheong , C. J. Won , G. Blumberg

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Abstract

The optical transitions between spin-polarized bands of the quasi-two dimensional Rashba system BiTeI are investigated using polarization resolved resonant Raman spectroscopy. We detect chiral excitations between states with opposite helicity and compare spectra to calculations within a three-band model. Using the resonant Raman excitation profile, we deduce the Rashba parameters and band gaps of the higher conduction bands near the Fermi level, and compare the parameters to values obtained by ab initio density function theory (DFT).

Keywords

rashba system bitei chiral excitations resonant raman spectroscopy spin-polarized bands three-band model density functional theory

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@article{arxiv.2202.03569,
  title  = {Chiral Electronic Excitations in a Quasi-2D Rashba System BiTeI},
  author = {A. C. Lee and B. Peng and K. Du and H. -H. Kung and B. Monserrat and S. -W. Cheong and C. J. Won and G. Blumberg},
  journal= {arXiv preprint arXiv:2202.03569},
  year   = {2022}
}

Chiral Electronic Excitations in a Quasi-2D Rashba System BiTeI

Abstract

Keywords

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