摘要
研究了稳恒超导电流密度 j=ensνs中 ,νS在产生磁场方面的作用 ;指出超导抗磁性起源的物理本质是 ,νSC(T)很大 (约为 1 0 3 - 1 0 4 ms- 1) ,νSC(0 )的上限是 0 K时电子 Fermi速度 (数量级为1 0 5ms- 1) ;并说明了 London穿透深度的物理意义。指出 L ondon穿透深度是产生拆对磁场 Hc(T)所要求的 Jc(T)分布的最小线度。
A discussion is done on ν sc (T) function in the production of magnetic fields when the steady superconducting current density j s=en sν s. It points out that the physical nature of the superconducting diamagnetism orign is that the ν SC (T) can reach the maximum (about 10 3-10 4ms -1 ). It also explains the physical significance of London's penetration depth and shows that London's penetration depth is j c(T)'s minimum limit in the production of break up pair magnetic field H c(T).
出处
《低温与超导》
CAS
CSCD
北大核心
2001年第3期66-68,共3页
Cryogenics and Superconductivity
