Effect of superconducting fluctuations on spin susceptibility and NMR relaxation rate.
Effect of superconducting fluctuations on spin susceptibility and NMR relaxation rate.
复制标题
超导涨落对自旋磁化率和核磁共振弛豫率的影响。
DOI：
10.1103/physrevb.50.10401
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发表时间：
1994
期刊：
影响因子：
--
通讯作者：
Varlamov
中科院分区：
文献类型：
--
作者：
Randeria;Varlamov
本文研究了超导涨落对自旋磁化率[chi][sub [ital s]]和核磁共振弛豫速率1/[ital T][sub 1]的影响。波动被发现减少[chi][sub [ital]]低于泡利磁化率。1/[ital T][sub 1][ital T]在弱对断裂时高于Korringa值时增强，但在对断裂较大时抑制。
We study the effect of superconducting fluctuations on the spin susceptibility [chi][sub [ital s]] and NMR relaxation rate 1/[ital T][sub 1] just above [ital T][sub [ital c]] for arbitrary impurity concentrations. Fluctuations are found to reduce [chi][sub [ital s]] below the Pauli susceptibility. 1/[ital T][sub 1][ital T] is enhanced above the Korringa value for weak pair breaking, but suppressed when the pair breaking is large.