Thermodynamic properties of thin films of superfluid 3 He − A
Thermodynamic properties of thin films of superfluid 3 He − A
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超流体薄膜的热力学性质 3 He−A
DOI：
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发表时间：
2003
期刊：
影响因子：
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通讯作者：
J. Sauls
中科院分区：
文献类型：
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作者：
A. Vorontsov;J. Sauls
准粒子在表面或界面上的散射强烈地改变了超流~ 3 He中的配对关联。本文给出了超流3 He薄膜的序参量、准粒子激发谱和自由能的理论结果和预言。被认为是由基板的镜面和漫散射，而自由表面被假定为一个完美的反射镜面边界。结果是基于零压下准粒子激发谱和序参量的自洽计算。我们得到了超流~ 3 He薄膜相图、自由能、熵和比热的新结果。
The pairing correlations in superfluid 3 He are strongly modified by quasiparticle scattering off a surface or an interface. We present theoretical results and predictions for the order parameter, the quasiparticle excitation spectrum and the free energy for thin films of superfluid 3 He. Both specular and diffuse scattering by a substrate are considered, while the free surface is assumed to be a perfectly reflecting specular boundary. The results are based on self-consistent calculations of the order parameter and quasiparticle excitation spectrum at zero pressure. We obtain new results for the phase diagram, free energy, entropy and specific heat of thin films of superfluid 3 He.