X-Ray Scattering at FeCo(001) Surfaces and the Crossover between Ordinary and Normal Transitions

TL;DR

This paper reanalyzes x-ray scattering data on FeCo(001) surfaces, demonstrating that recent theoretical models accurately describe the crossover between ordinary and normal surface phase transitions.

Contribution

It provides a detailed comparison between experimental data and theoretical predictions for surface critical behavior in FeCo, clarifying the crossover phenomena.

Findings

Theoretical models match experimental data well.

Identified the crossover between ordinary and normal transitions.

Validated recent theoretical predictions with experimental results.

Abstract

In a recent experiment by Krimmel et al. [PRL 78, 3880 (1997)], the critical behavior of FeCo near a (001) surface was studied by x-ray scattering. Here the experimental data are reanalyzed, taking into account recent theoretical results on order-parameter profiles in the crossover regime between ordinary and normal transitions. Excellent agreement between theoretical expectations and the experimental results is found.