Influence of Structural Disorder on the Magnetic Order in FeRhCr Alloys

Magnetic phase transitions in alloys are highly influenced by the sample preparation techniques. In the present research, electronic and magnetic properties of Fe48Cr3Rh49 alloys with varying cooling rates were studied, both experimentally and theoretically. The degree of crystalline ordering was fo...

Full description

Saved in:
Bibliographic Details
Published in:Metals (Basel ) 2023-10, Vol.13 (10), p.1650
Main Authors: Komlev, Aleksei S., Cabeza, Gabriela F., Chirkova, Alisa M., Ukrainczyk, Neven, Sherstobitova, Elena A., Zverev, Vladimir I., Gimaev, Radel, Baranov, Nikolai V., Perov, Nikolai S.
Format: Article
Language:English
Subjects:
ab initio calculation
Alloys
Annealing
Approximation
Cooling
Cooling rate
Crystal structure
Degassing of metals
electronic structure
Energy
FeRhCr alloys
Heat treatment
Magnetic fields
Magnetic properties
magnetocaloric materials
Metals
Parameters
phase transition
Phase transitions
Physical properties
Specialty metals industry
Substitutes
Thermal properties
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Magnetic phase transitions in alloys are highly influenced by the sample preparation techniques. In the present research, electronic and magnetic properties of Fe48Cr3Rh49 alloys with varying cooling rates were studied, both experimentally and theoretically. The degree of crystalline ordering was found to depend on the cooling rate employed after annealing the alloy. Modeling of alloy structures with different degrees of crystalline ordering was carried out via strategic selection of substitution positions and distances between chromium atoms. Theoretical calculations revealed significant changes in magnetic and electronic properties of the alloy with different substitutions. A comprehensive analysis of the calculated and experimental data established correlations between structural characteristics and parameters governing the magnetic phase transition. In this study, we also developed a method for evaluating the magnetic properties of the alloys obtained under different heat treatments. The proposed approach integrates atom substitution and heat treatment parameters, offering precise control over alloy manufacturing to effectively tune their essential magnetic properties.
ISSN:2075-4701
2075-4701
DOI:10.3390/met13101650