自旋三重态超导体结的直流Josephson电流  

THE DC JOSEPHSON CURRENT IN SPIN-TRIPLET SUPERCONDUCTOR JUNCTIONS

作　　者：李晓薇[1] 

机构地区：[1]淮阴师范学院物理系,江苏淮安223001

出　　处：《低温物理学报》2006年第2期160-163,共4页Low Temperature Physical Letters

摘　　要：在s波超导体/绝缘层/自旋三重态超导体结中,计算了直流Josephson电流随结的温度、相位差以及绝缘层势垒强度的变化关系.当自旋三重态超导体具有px波配对势时,自旋三重态超导体结的直流Josephson电流随结两侧相位差的振荡周期是π,与结的相位差的关系为sin(2).结界面的绝缘层势垒散射均抑制结的直流Josephson电流.The Josephson currents in s-wave superconductor/insulator/triplet superconductor（s/I/Ts） junctions are calculated as a function of temperature, the phase and insulating barrier strength. The phase dependence of the Josephson current I（φ） between s-wave and triplet superconductors is predicted to be sin（24φ）, the period of oscillation curves is π. when p -wave symmetries for the pairing symmetries of spin-triplet superconductor. The insulating barrier strength always suppresses the currents in s/I/Ts junction,

关 键 词：自旋三重态超导体 P波超导体 直流JOSEPHSON电流 

分 类 号：O511.2[理学—低温物理]