Kondo screening cloud in a superconductor with mixed s-wave and p-wave pairing states
Kondo screening cloud in a superconductor with mixed s-wave and p-wave pairing states作者机构：School of Physical Science and TechnologyNingbo UniversityNingbo 315211China
出 版 物：《Chinese Physics B》 (中国物理B（英文版）)
年 卷 期：2022年第31卷第10期
页 面：478-487页
核心收录：
学科分类：07[理学] 070205[理学-凝聚态物理] 0702[理学-物理学]
主 题：Kondo effect Rashba spin-orbit couplings p-wave superconductors Anderson model
摘 要：We study the Kondo screening of a spin-1/2 magnetic impurity coupled to a superconductor,which is fabricated by combination of an s-wave superconductor,a ferromagnet and a semiconductor with Rashba spin-orbit coupling(RSOC).The proximity induced superconducting states include the s-wave and p-wave pairing components with the aids of RSOC,and the ferromagnet induces a Zeeman field which removes the spin degeneracy of the quasiparticles in the triplet ***,the Kondo screening of magnetic impurity involves the orbital degrees of freedom,and is also affected by the Zeeman *** the variational method,we calculate the binding energy and the spin-spin correlation between the magnetic impurity and the electrons in the coexisting s-wave and p-wave pairing *** find that Kondo singlet forms more easily with stronger RSOC,but Zeeman field in general decreases the binding *** spin-spin correlation decays fast in the vicinity of the magnetic *** to the RSOC,the spatial spin-spin correlation becomes highly anisotropic,and the Zeeman field can induce extra asymmetry to the off-diagonal components of the spin-spin *** study can offer some insights into the studies of extrinsic topological superconductors fabricated from the hybrid structures containing chains of magnetic impurities.
维普期刊数据库
同方期刊数据库