Phase coexistence and interrupted 1st order transition in magnetic shape memory alloys

TL;DR

This paper investigates the structural and magnetic properties of Ni-Mn-Z Heusler alloys, focusing on phase coexistence and the kinetic arrest of first-order magnetic transitions, to better understand their magneto-structural behavior.

Contribution

It provides theoretical insights into the origin of phase coexistence and the interrupted first-order transition in magnetic shape memory alloys.

Findings

Identification of phase coexistence in Ni-Mn-Z alloys

Understanding of kinetic arrest mechanisms in magnetic transitions

Analysis of latent heat contributions in magneto-structural transitions

Abstract

Current theoretical studies on structural and magnetic properties of functional Ni-Mn-Z (Z = Ga, In, Sn) Heusler alloys address the origin of the structural transition from the austenite to martensite, and also address the dominant contribution to the latent heat associated with this magneto-structural transition. This should help understand the origin of kinetic arrest of 1st order magnetic transitions.