Strong-Coupling and the Stripe Phase of He

被引:0
作者
Wiman, Joshua J. [1 ]
Sauls, J. A. [1 ]
机构
[1] Northwestern Univ, Dept Phys & Astron, Evanston, IL 60208 USA
基金
美国国家科学基金会;
关键词
Superfluid He-3; Phase transitions; Confined quantum liquids;
D O I
10.1007/s10909-016-1632-7
中图分类号
O59 [应用物理学];
学科分类号
摘要
Thin films of superfluid He were predicted, based on weak-coupling BCS theory, to have a stable phase which spontaneously breaks translational symmetry in the plane of the film. This crystalline superfluid, or "stripe" phase, develops as a one-dimensional periodic array of domain walls separating degenerate B phase domains. We report calculations of the phases and phase diagram for superfluid He in thin films using a strong-coupling Ginzburg-Landau theory that accurately reproduces the bulk He superfluid phase diagram. We find that the stability of the Stripe phase is diminished relative to the A phase, but the Stripe phase is stable in a large range of temperatures, pressures, confinement, and surface conditions.
引用
收藏
页码:1054 / 1070
页数:17
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