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Influence of p-wave pairing potential and spin-orbit coupling in two-dimensional noncentrosymmetric superconductors
Yan Xu,Zhao Jingxiang,Gu Qiang * #
Department of Physics, University of Science and Technology Beijing, Beijing 100083
*Correspondence author
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Funding: Specialized Research Fund for the Doctoral Program of Higher Education 高等学校博士学科点专项科研基金（No.No. 20100006110021)，National Natural Science Foundation of China）
Opened online:31 December 2013
Accepted by: none
Citation: Yan Xu,Zhao Jingxiang,Gu Qiang.Influence of p-wave pairing potential and spin-orbit coupling in two-dimensional noncentrosymmetric superconductors[OL]. [31 December 2013] http://en.paper.edu.cn/en_releasepaper/content/4578123
 
 
Both pairing potential and spin-orbit coupling (SOC) play important roles in two-dimensional noncentrosymmetric superconductivity. Supposing that p-wave pairing potential V is present between quasiparticles, s-wave spin-singlet pairs arise and mix with p-wave spin-triplet pairs in the electron space. Our results show that the effect of SOC on the electron superconducting order parameters is different in weak pairing potential regime from that in stronger pairing potential regime. If the pairing potential V<0.6 , both the s-wave and p-wave pairings are enhanced by the SOC. On the other hand, when V>0.6, increasing SOC leads to increment of the p-wave pairing, but reduction of the s-wave one. In both two cases, the ratio of the magnitude of the triplet and singlet components is always increased with SOC.
Keywords:Condensed matter physics; pairing potential; spin-orbit coupling
 
 
 

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