Disorder and the superfluid transition in liquid 4He.
Disorder and the superfluid transition in liquid 4He.
复制标题
液体 4He 中的无序和超流转变。
DOI：
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发表时间：
1988
影响因子：
8.6
通讯作者：
J. Reppy
中科院分区：
文献类型：
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作者：
M. Chan;K. I. Blum;S. Murphy;Gane Ka;J. Reppy
通过将氦限制在Vycor、Xerogel和气凝胶玻璃三种不同多孔介质的孔洞中，研究了淬火无序对超流体/Super4/He临界行为的影响。在每种情况下，随着转变温度的接近，观察到超流体密度的明确的幂定律行为。在Vycor中，超流体临界指数是块状的，而在其他两种介质中，临界指数却截然不同。
The influence of quenched disorder on the critical behavior of superfluid /sup 4/He is studied by confinement of the helium to the pores of three different porous media: Vycor, xerogel, and aerogel glass. In each case a well defined power-law behavior for the superfluid density is observed as the transition temperature is approached. In Vycor the superfluid critical exponent is bulklike, whereas strikingly different critical exponents are seen in the other two media.