When is short-range ''critical'' wetting not critical?

被引：27

作者：

Boulter, CJ

机构：

[1] Laboratorium voor Vaste-Stoffysica en Magnetisme, Katholieke Universiteit Leuven, Leuven

来源：

PHYSICAL REVIEW LETTERS | 1997年 / 79卷 / 10期

关键词：

D O I：

10.1103/PhysRevLett.79.1897

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Recent interface Hamiltonian studies have posed the question: Can an instability mechanism, due to a variable interface stiffness, drive bare critical wetting transitions first order? We argue ''yes'' on the basis of a novel nonlinear renormalization group study allowing semiquantitative analysis in dimensions 1 < d less than or equal to 3. Fluctuation-induced first-order wetting occurs for d greater than or similar to 2.41 if the wetting parameter omega(T) is less than a tricritical value omega(t)(T). Crucially, in d = 3 (for relevant temperatures) we find omega(t) much greater than omega clearly enhancing first-order wetting as compared with earlier less conclusive studies.

引用

页码：1897 / 1900

页数：4

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