Split Fermi Surface Properties in Ullmannite NiSbS and PdBiSe with the Cubic Chiral Crystal Structure

被引：17

作者：

Kakihana, Masashi ^{[1
]}

Teruya, Atsushi ^{[1
]}

Nishimura, Kengo ^{[1
]}

Nakamura, Ai ^{[1
,2
]}

Takeuchi, Tetsuya ^{[3
]}

Haga, Yoshinori ^{[4
]}

Harima, Hisatomo ^{[5
]}

Hedo, Masato ^{[6
]}

Nakama, Takao ^{[6
]}

Onuki, Yoshichika ^{[6
]}

机构：

[1] Univ Ryukyus, Grad Sch Engn & Sci, Nishihara, Okinawa 9030213, Japan

[2] Tohoku Univ, Inst Mat Res, Oarai, Ibaraki 3111313, Japan

[3] Osaka Univ, Low Temp Ctr, Toyonaka, Osaka 5600043, Japan

[4] Japan Atom Energy Agcy, Adv Sci Res Ctr, Tokai, Ibaraki 3191195, Japan

[5] Kobe Univ, Grad Sch Sci, Kobe, Hyogo 6578501, Japan

[6] Univ Ryukyus, Fac Sci, Nishihara, Okinawa 9030213, Japan

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2015年 / 84卷 / 09期

关键词：

D O I：

10.7566/JPSJ.84.094711

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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 alpha and alpha' were determined as 220K in NiSbS and 1050K in PdBiSe for H parallel to [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.

引用

页数：8

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