Josephson current in an irradiated Weyl semimetal junction  

作　　者：Han Wang Rui Shen 王含;沈瑞(National Laboratory of Solid State Microstructures and School of Physics,Nanjing University,Nanjing 210093,China;Collaborative Innovation Center of Advanced Microstructures,Nanjing University,Nanjing 210093,China)

机构地区：[1]National Laboratory of Solid State Microstructures and School of Physics,Nanjing University,Nanjing 210093,China [2]Collaborative Innovation Center of Advanced Microstructures,Nanjing University,Nanjing 210093,China

出　　处：《Chinese Physics B》2021年第7期83-88,共6页中国物理B（英文版）

基　　金：the National Key Research and Development Program of China(Grant No.2017YFA0303203);the National Natural Science Foundation of China(Grant No.11474149)。

摘　　要：The influence of the off-resonant circularly polarized light on the Josephson current in the time-reversal broken superconducting Weyl semimetal junctions is investigated by using the Bogoliubov–de Gennes equation and the transfer matrix approach.Both the zero momentum BCS pairing states and the finite momentum Fulde–Ferrell–Larkin–Ovchinnikov(FFLO)pairing states are considered for the Weyl superconductors.When a circularly polarized light is applied,it is shown that the current phase relation remains unchanged for the BCS pairing with the increasing of incident radiation intensity A_(0).For FFLO pairing,the Josephson current exhibits the 0–πtransition and periodic oscillation as a function of A_(0).The dependence of free energy and critical current on A_(0) are also investigated.

关 键 词：Weyl semimetal Josephson junction FFLO pairing 

分 类 号：O469[理学—凝聚态物理]