Origin of the anomaly in diffuse scattering from disordered Pt-V alloys

TL;DR

This paper explains the unusual concentration dependence of diffuse scattering in Pt-V alloys by analyzing the competition between interaction and self-energy curvatures, predicting similar temperature effects.

Contribution

It introduces a novel explanation for the anomalous diffuse scattering behavior in Pt-V alloys based on interaction and self-energy curvature competition.

Findings

Diffuse scattering peak splitting increases with Pt content.

The model predicts similar temperature-dependent behavior.

Provides a new theoretical framework for alloy scattering analysis.

Abstract

An explanation of the anomalous concentration dependence of diffuse scattering from the Pt-V alloy system (splitting of the (100) short-range order intensity peak with increasing Pt content) is proposed. The effect is attributed to the competition between the interaction and self-energy curvatures. A similar temperature behaviour is predicted.