Superfluid 3He in aerogel.
Superfluid 3He in aerogel.
复制标题
气凝胶中的超流体 3He。
DOI：
10.1103/physrevlett.74.4667
复制
发表时间：
1995
影响因子：
8.6
通讯作者：
Parpia
中科院分区：
文献类型：
--
作者：
Porto;Parpia
我们报道了对限制在孔隙率为98.2%的气凝胶中的³He的超流密度和转变温度的测量结果。超流分数以及超流出现的温度都与其体相值相比被强烈抑制。结果表明，气凝胶是通过一种不同于弥散散射表面的机制来降低序参量的。
We report measurements of the superfluid density and transition temperature of ${}^{3}\mathrm{He}$ confined within 98.2% open aerogel. Both the superfluid fraction and the temperature at which the superfluid is manifested are suppressed strongly from their bulk values. The results suggest that the aerogel reduces the order parameter by a mechanism other than as a diffusely scattering surface.