Journal
JOURNAL OF LOW TEMPERATURE PHYSICS
Volume 184, Issue 5-6, Pages 1054-1070Publisher
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s10909-016-1632-7
Keywords
Superfluid He-3; Phase transitions; Confined quantum liquids
Categories
Funding
- National Science Foundation [DMR-1106315, DMR-1508730]
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [1106315] Funding Source: National Science Foundation
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [1508730] Funding Source: National Science Foundation
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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.
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