Electronic Structure of Novel Non-centrosymmetric Superconductor Mg2Rh3P

被引：5

作者：

Hase, I. ^{[1
]}

Yanagisawa, T. ^{[1
]}

Iyo, A. ^{[1
]}

Fujihisa, H. ^{[1
]}

Goto, Y. ^{[1
]}

Eisaki, H. ^{[1
]}

Kawashima, K. ^{[2
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3058568, Japan

[2] IMRA Mat R&D Co Ltd, Kariya, Aichi, Japan

来源：

31ST INTERNATIONAL SYMPOSIUM ON SUPERCONDUCTIVITY (ISS2018) | 2019年 / 1293卷

基金：

日本学术振兴会;

关键词：

LI2PD3B;

D O I：

10.1088/1742-6596/1293/1/012028

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We calculated the electronic structure of a novel non-centrosymmetric superconductor Mg2-xRh3P from first-principles. Stoichiometric Mg2Rh3P shows a pseudogap at the Fermi level. This is consistent with the experimental fact that the stoichiometric sample Mg2Rh3P does not show superconductivity and the Mg-deficient sample Mg1.9Rh3P shows superconductivity with T-c similar to 3.6 K. The band dispersion of Mg2Rh3P shows a characteristic band splitting due to the anti-symmetric spin-orbit coupling (ASOC). The magnitude of ASOC of Mg2Rh3P is comparable to Li2Pd3B. We also show that its 5d-counterpart Mg2Ir3P may have quite a large ASOC, and is a good candidate of parity-mixed superconductor likewise Li2Pd3B.

引用

页数：5

共 16 条

[1] Magnetization measurements on Li2Pd3B superconductor [J].

Badica, P ;

Kondo, T ;

Kudo, T ;

Nakamori, Y ;

Orimo, S ;

Togano, K .

APPLIED PHYSICS LETTERS, 2004, 85 (19) :4433-4435

[2] Heavy fermion superconductivity and magnetic order in noncentrosymmetric CePt3Si -: art. no. 027003 [J].

Bauer, E ;

Hilscher, G ;

Michor, H ;

Paul, C ;

Scheidt, EW ;

Gribanov, A ;

Seropegin, Y ;

Noël, H ;

Sigrist, M ;

Rogl, P .

PHYSICAL REVIEW LETTERS, 2004, 92 (02) :4

[3]

Bauer E., 2011, NONCENTROSYMMETRIC S

[4]

Blaha P., 2001, An augmented plane wave+ local orbitals program for calculating crystal properties, V60

[5] Landau and Ott scaling for the kinetic energy density in the low-Tc conventional superconductors Li2Pd3B and Nb [J].

Doria, Mauro M. ;

Salem-Sugui, S., Jr. ;

Badica, P. ;

Togano, K. .

PHYSICAL REVIEW B, 2006, 73 (18)

[6] Phenomenological theory of the s-wave state in superconductors without an inversion center [J].

Frigeri, P. A. ;

Agterberg, D. F. ;

Milat, I. ;

Sigrist, M. .

EUROPEAN PHYSICAL JOURNAL B, 2006, 54 (04) :435-448

[7]

IYO A, UNPUB

[8] In-plane magnetic penetration depth λab in Ca2-xNaxCuO2Cl2:: Role of the apical sites [J].

Khasanov, R. ;

Zhigadlo, N. D. ;

Karpinski, J. ;

Keller, H. .

PHYSICAL REVIEW B, 2007, 76 (09)

[9]

Lee K-W, 2005, PHYS REV B, V72

[10] Structure study of superconducting Li2Pd3B system by neutron powder diffraction [J].

Mochiku, T. ;

Takeya, H. ;

Wuernisha, T. ;

Mori, K. ;

Ishigaki, T. ;

Kamiyama, T. ;

Fujii, H. ;

Hirata, K. .

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2006, 445 :57-60

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