The theory of interface localization in near-critical planar systems at phase coexistence is formulated from first principles. We show that mutual delocalization of two interfaces, amounting to interfacial wetting, occurs when the bulk correlation length crit- ical exponent ν is larger than or equal to 1. Interaction with a boundary or defect line involves an additional scale and a dependence of the localization strength on the distance from criticality. The implications are particularly rich in the boundary case, where de- localization proceeds through different renormalization patterns sharing the feature that the boundary field becomes irrelevant in the delocalized regime. The boundary delocal- ization (wetting) transition is shown to be continuous, with surface specific heat and layer thickness exponents which can take values that we determine.
|Titolo:||Interface localization near criticality|
|Data di pubblicazione:||2016|
|Numero di Articolo:||032|
|Digital Object Identifier (DOI):||10.1007/JHEP05(2016)032|
|Fulltext via DOI:||10.1007/JHEP05(2016)032|
|Appare nelle tipologie:||1.1 Journal article|