Depth-dependent critical behavior in V2H

Abstract

Using X-ray diffuse scattering, we investigate the critical behavior of an order-disorder phase transition in a defective "skin-layer" of V2H. In the skin-layer, there exist walls of dislocation lines oriented normal to the surface. The density of dislocation lines within a wall decreases continuously with depth. We find that, because of this inhomogeneous distribution of defects, the transition effectively occurs at a depth-dependent local critical temperature. A depth-dependent scaling law is proposed to describe the corresponding critical ordering behavior.

5 pages, 4 figures

References in corpus (1)

• Inhomogeneous ground state and the coexistence of two length scales near phase transitions in real solids

Cited by in corpus (2)

• Depth-dependent ordering, two-length-scale phenomena and crossover behavior in a crystal featuring a skin-layer with defects
• Anomalous ordering in inhomogeneously strained materials