Odd-Parity Superconductivity in the Vicinity of Inversion Symmetry Breaking in Spin-Orbit-Coupled Systems

被引：96
|
作者：
Kozii, Vladyslav [1 ]
Fu, Liang [1 ]
机构：
[1] MIT, Dept Phys, Cambridge, MA 02139 USA
来源：
PHYSICAL REVIEW LETTERS | 2015年 / 115卷 / 20期
关键词：
PYROCHLORE OXIDE CD2RE2O7;
D O I：
10.1103/PhysRevLett.115.207002
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We study superconductivity in spin-orbit-coupled systems in the vicinity of inversion symmetry breaking. We find that, because of the presence of spin-orbit coupling, fluctuations of the incipient parity-breaking order generate an attractive pairing interaction in an odd-parity pairing channel, which competes with the s-wave pairing. We show that Coulomb repulsion or an external Zeeman field suppresses the s-wave pairing and promotes the odd-parity superconducting state. Our work provides a new mechanism for odd-parity pairing and opens a route to novel topological superconductivity.
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页数：5
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