Abstract

In nematic aerogels, their constituent fibers are oriented along the same direction. In liquid ³He filling such aerogels, the scattering of Fermi quasiparticles at ultralow temperatures becomes anisotropic. This makes it possible to obtain new superfluid phases of ³He, which are not observed in bulk ³He. In this article, results of NMR investigation of these new superfluid phases of ³He in aerogels with different porosities are compared. We describe the methods for identifying these phases and consider some topological defects observed in them.

中文翻译：

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超流体3 He在向列气凝胶中

摘要

在向列型气凝胶中，其组成纤维沿相同方向取向。在充满这种气凝胶的³ He液体中，费米准粒子在超低温下的散射变得各向异性。这使得获得³ He的新超流体相成为可能，而在³ He本体中没有观察到。在本文中，比较了具有不同孔隙率的气凝胶中³ He的这些新超流体相的NMR研究结果。我们描述了识别这些阶段的方法，并考虑了其中观察到的某些拓扑缺陷。