𝔖 Bobbio Scriptorium
✦   LIBER   ✦

3He-B in a thin film: A comparison of boundary conditions

✍ Scribed by L.J. Buchholtz

Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
135 KB
Volume
194-196
Category
Article
ISSN
0921-4526

No coin nor oath required. For personal study only.

✦ Synopsis

We calculate the gap function of stationary B-phase 3He confined to a thin film and resting on a diffuse substrate with a freestanding upper surface. We employ two different formulations of the boundary conditions describing rough walls and compute the gap for various widths and surface roughnesses. Both formulations predict the abrupt vanishing of the perpendicular gap component at a width of about 2.5 coherence lengths irrespective of surface diffusivity. The parallel gap component persists down to a much smaller width which is quite roughness sensitive.

πŸ“œ SIMILAR VOLUMES

Superfluid 3Heξ—ΈB in a realistic thin fil
Superfluid 3Heξ—ΈB in a realistic thin film: Gap function
✍ Louis J. Buchholtz πŸ“‚ Article πŸ“… 1990 πŸ› Elsevier Science 🌐 English βš– 187 KB

## Function This paper reports a calculation of superfluid in a planar film with one diffusely reflecting surface and a facing specular surface. The intent of this work is to demonstrate the use of the nonlinear Quasiclassical boundary conditions in a fully selfconsistent calculation of the superf

Surface energy and textural boundary con
Surface energy and textural boundary conditions between A and B phases of3He
✍ R. Kaul; H. Kleinert πŸ“‚ Article πŸ“… 1980 πŸ› Springer US 🌐 English βš– 419 KB

The behavior of the order parameter Aai(X) is investigated for a planar interface between 3He-A and 3He-B. Boundary conditions are derived and the surface energy is calculated in excellent agreement with experiment. Our energy is 30% lower than a previous estimate which assumed the presence of a pla