Split Fermi surface properties in ullmannite NiSbS and PdBiSe with the cubic chiral crystal structure

Masashi Kakihana, Atsushi Teruya, Kengo Nishimura, Ai Nakamura, Tetsuya Takeuchi, Yoshinori Haga, Hisatomo Harima, Masato Hedo, Takao Nakama, Yoshichika Onuki

研究成果: Article査読

13 被引用数 (Scopus)

抄録

We grew single crystals of ullmannite NiSbS and PbBiSe with the cubic chiral structure and carried out electrical resistivity, specific heat, and de Haas-van Alphen (dHvA) experiments to clarify their Fermi surface properties. The Fermi surfaces were found to split into two, reflecting the non-centrosymmetric crystal structure. The splitting energies between the two nearly spherical electron Fermi surfaces named α and αPrime; were determined as 220K in NiSbS and 1050K in PdBiSe for H ¶ [100] or [001]. This difference in splitting energies between the two compounds originates mainly from the fact that the spin-orbit interactions of Ni-3d, Sb-5p, and S-3p electrons in NiSbS are smaller in magnitude than those of Pd-4d, Bi-6p, and Se-4p electrons in PdBiSe, respectively.

本文言語English
論文番号094711
ジャーナルjournal of the physical society of japan
84
9
DOI
出版ステータスPublished - 2015 9 15

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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