摘要
We apply random matrix theory to small metallic grains in different spin-states of S=0,1/2,1,3/2,2,5/2,...,and find that there exist theoretical critical level spacings dc at which the superconductivity would break down.We also find that the higher the spin-state,the smaller the critical level spacing,and for the state of S=0 there actually exists the superconducting enhancement.
作者
CHEN Zhi-Qian
ZHENG Ren-Rong
陈志谦;郑仁蓉(Department of Physics,Southwest China Normal University,Chongqing 400715;Department of Physics,Suzhou University,Suzhou 215006;Department of Physics,Shanghai Teachers’University,Shanghai 200234)
基金
Supported by the National Natural Science Foundation of China under Grant No.19875040
Chongqing Commission of Science and Technology,Shanghai Commission of Education and Shanghai Teachers' University.
