Enhancement of spin-orbit coupling in Dirac semimetal Cd$_{3}$As$_{2}$ films by Sb-doping

Yusuke Nakazawa; Masaki Uchida; Shinichi Nishihaya; Mizuki Ohno; Shin Sato; Masashi Kawasaki

doi:10.1103/PhysRevB.103.045109

Enhancement of spin-orbit coupling in Dirac semimetal Cd$_{3}$As$_{2}$ films by Sb-doping

Strongly Correlated Electrons 2021-01-12 v1 Materials Science

Authors: Yusuke Nakazawa , Masaki Uchida , Shinichi Nishihaya , Mizuki Ohno , Shin Sato , Masashi Kawasaki

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Abstract

We present a study on magnetotransport in films of the topological Dirac semimetal Cd $_{3}$ As $_{2}$ doped with Sb grown by molecular beam epitaxy. In our weak antilocalization analysis, we find a significant enhancement of the spin-orbit scattering rate, indicating that Sb doping leads to a strong increase of the pristine band-inversion energy. We discuss possible origins of this large enhancement by comparing Sb-doped Cd $_{3}$ As $_{2}$ with other compound semiconductors. Sb-doped Cd $_{3}$ As $_{2}$ will be a suitable system for further investigations and functionalization of topological Dirac semimetals.

Keywords

Dirac semimetal Cd3As2 Sb doping spin-orbit coupling weak antilocalization magnetotransport

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@article{arxiv.2101.03560,
  title  = {Enhancement of spin-orbit coupling in Dirac semimetal Cd$_{3}$As$_{2}$ films by Sb-doping},
  author = {Yusuke Nakazawa and Masaki Uchida and Shinichi Nishihaya and Mizuki Ohno and Shin Sato and Masashi Kawasaki},
  journal= {arXiv preprint arXiv:2101.03560},
  year   = {2021}
}

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16 pages, 4 figures

Enhancement of spin-orbit coupling in Dirac semimetal Cd$_{3}$As$_{2}$ films by Sb-doping

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