Critical Wall Perturbations: Scaling and Renormalization Group
Phys. Rev. Lett. 49, 1595 – Published 29 November, 1982
DOI: https://doi.org/10.1103/PhysRevLett.49.1595
Abstract
The influence at criticality of a "far" wall on the order parameter close to a "near" wall as discussed by Fisher and de Gennes is recast in a form more suitable for microscopic analysis. An argument beyond ordinary scaling is presented which yields the perturbation exponent for longitudinal perturbations and for transverse perturbations. These results are consistent with explicit renormalization-group computations to which involve solution of the nonlocal equation of state.