- 著者
-
Kakihana Masashi
Teruya Atsushi
Nishimura Kengo
Nakamura Ai
Takeuchi Tetsuya
Haga Yoshinori
Harima Hisatomo
Hedo Masato
Nakama Takao
Ōnuki Yoshichika
- 出版者
- The Physical Society of Japan
- 雑誌
- Journal of the Physical Society of Japan (ISSN:00319015)
- 巻号頁・発行日
- vol.84, no.9, pp.94711-1-8, 2015-08-21
- 被引用文献数
-
17
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 α′ were determined as 220 K in NiSbS and 1050 K in PdBiSe for <italic>H</italic>|| [100] or [001]. This difference in splitting energies between the two compounds originates mainly from the fact that the spin–orbit interactions of Ni-3<italic>d</italic>, Sb-5<italic>p</italic>, and S-3<italic>p</italic>electrons in NiSbS are smaller in magnitude than those of Pd-4<italic>d</italic>, Bi-6<italic>p</italic>, and Se-4<italic>p</italic>electrons in PdBiSe, respectively.