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
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页数：6
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