We study the interface between bulk and aerogel impregnated with 3 He-B. The magnetic susceptibility at the interface determines a boundary condition for the texture, which can be parameterized by the orbital vector L. We use Ginzburg–Landau theory to calculate the boundary condition assuming homogeneous aerogel and a sharp interface. Recent NMR measurements give reason to conjecture that L tends to be parallel to interface. Our numerical calculations confirm this conjecture in the Ginzburg–Landau (GL) regime. However, the orienting energy is one order of magnitude smaller than at a solid wall, and therefore can easily be overshadowed by a nearby wall.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Dmitriev V.V., Mulders N., Zavjalov V.V., Zmeev D.E., (2006) . AIP Conf. Proce. 850, 225
Thuneberg E.V., Yip S.K., Fogelström M., Sauls J.A., (1998) . Phys. Rev. Lett. 80: 2861
Engelsberg S., Brinkman W.F., Anderson P.W., (1974) . Phys. Rev. A 9: 2592
Smith H., Brinkman W.F., Engelsberg S., (1977) . Phys. Rev. B 15, 199
Thuneberg E.V., (2001) . J. Low Temp. Phys. 122, 657
E. V. Thuneberg, in Quasiclassical Methods in Superconductivity and Superfluidity, Verditz 96, D. Rainer and J.A. Sauls (eds.) (1998) p. 53; cond-mat/9802044.
Thuneberg E.V., (1987) . Phys. Rev. B 36: 3583