Lawes G, Kingsley SC, Mulders N, Parpia JM
Laboratory of Atomic and Solid State Physics, Cornell University, Ithaca, New York.
Phys Rev Lett. 2000 May 1;84(18):4148-51. doi: 10.1103/PhysRevLett.84.4148.
We have investigated the superfluid transition of 3He in different samples of silica aerogel. By comparing new measurements on a 99.5% sample with previous observations on the behavior of 3He in 98% porous aerogel, we have found evidence for a scaling of the transition temperature and superfluid density of 3He to the correlation length of the aerogel.
我们研究了3He在不同二氧化硅气凝胶样品中的超流转变。通过将对99.5%样品的新测量结果与之前关于3He在98%多孔气凝胶中行为的观测结果进行比较,我们发现了3He的转变温度和超流密度与气凝胶关联长度之间存在标度关系的证据。