Impurity Scattering Effect on Superfluidity of 3He in Aerogel
Impurity Scattering Effect on Superfluidity of 3He in Aerogel
复制标题
杂质散射对气凝胶中 3He 超流性的影响
DOI：
10.1023/a:1021806004870
复制
发表时间：
1999
影响因子：
2
通讯作者：
S. Higashitani
中科院分区：
文献类型：
--
作者：
S. Higashitani
基于弱耦合极限内的标准杂质理论，研究了气凝胶中超流体3He的杂质散射效应。我们讨论脏费米液体中的超流体转变温度和超流体密度。结果与最近关于 3He 在气凝胶中的超流动性的实验进行了比较。与 B 相相比，观察到的超流体密度的低压数据与 A 相的结果更加一致。 B 相结果显示与低压数据存在很大差异。
The impurity scattering effect on superfluid3He in aerogel is studied on the basis of the standard impurity theory within the weak coupling limit. We discuss the superfluid transition temperature and the superfluid density in the dirty Fermi liquid. The results are compared with recent experiments on the superfluidity of3He in aerogel. The low pressure data of the observed superfluid density are shown to be in better agreement with the results for the A-phase than for the B-phase. The B-phase results show considerable disagreement with the low pressure data.