Magnetic impurities make superconductivity in 3D Dirac semi-metal triplet

被引：3

作者：

Rosenstein, Baruch ^{[1
]}

Shapiro, B. Ya. ^{[2
,3
]}

Li, Dingping ^{[4
,5
]}

Shapiro, I. ^{[2
,3
]}

机构：

[1] Natl Chiao Tung Univ, Dept Electrophys, Hsinchu 30050, Taiwan

[2] Ariel Univ, Dept Phys, IL-40700 Ariel, Israel

[3] Bar Ilan Univ, Dept Phys, IL-52900 Ramat Gan, Israel

[4] Peking Univ, Sch Phys, Beijing 100871, Peoples R China

[5] Collaborat Innovat Ctr Quantum Matter, Beijing, Peoples R China

来源：

EPL | 2015年 / 109卷 / 06期

基金：

中国国家自然科学基金;

关键词：

TOPOLOGICAL INSULATORS; FERROMAGNETISM;

D O I：

10.1209/0295-5075/109/67006

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Conventional electron-phonon coupling induces either odd (triplet) or even (singlet) pairing states in a time reversal and inversion invariant Dirac semi-metal. It was shown that the energy of the singlet channel, always lower, prevails over the triplet. The role of both magnetic and non-magnetic spatial disorder was discovered. It is predicted that the magnetic part of scattering establishes a triplet ground state suppressing the singlet phase. On the other hand, the nonmagnetic impurities slightly affecting the singlet phase may significantly suppress the triplet state. Copyright (C) EPLA, 2015

引用

页数：6

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