Structural, Electronic, And Magnetic Properties Of CoFeVGe-Based Compounds: Experiment And Theory

Authors

Parashu Kharel
Zachary Lehmann, South Dakota State UniversityFollow
Gavin Baker, South Dakota State UniversityFollow
Lukas Stuelke, University of Northern Iowa
Shah Valloppilly, University of Nebraska–LincolnFollow
Paul M. Shand, University of Northern IowaFollow
Pavel V. Lukashev, University of Northern IowaFollow

Comments

First published in API Advances, 13, 015217 (2023) published by API Publishing. DOI: https://doi.org/10.1063/9.0000395

Document Type

Article

Publication Version

Published Version

Journal/Book/Conference Title

AIP Advances

Volume

13

Issue

1

First Page

1

Last Page

4

Abstract

We have carried out a combined theoretical and experimental investigation of both stoichiometric and nonstoichiometric CoFeVGe alloys. In particular, we have investigated CoFeVGe, Co1.25Fe0.75VGe, Co0.75Fe1.25VGe, and CoFe0.75VGe bulk alloys. Our first principles calculations suggest that all four alloys show ferromagnetic order, where CoFeVGe, Co1.25Fe0.75VGe, and Co0.75Fe1.25VGe are highly spin polarized with spin polarization values of over 80%. However, the spin polarization value of CoFe0.75VGe is only about 60%. We have synthesized all four samples using arc melting and high-vacuum annealing at 600 °C for 48 hours. The room temperature x-ray diffraction of these samples exhibits a cubic crystal structure with disorder. All the samples show single magnetic transitions at their Curie temperatures, where the Curie temperature and high field (3T) magnetization are 288 K and 42 emu/g; 305 K and 1.5 emu/g; 238 K and 39 emu/g; and 306 K and 35 emu/g for CoFeVGe, Co1.25Fe0.75VGe, Co0.75Fe1.25VGe, and CoFe0.75VGe, respectively.

Department

Department of Physics

Original Publication Date

1-1-2023

Object Description

1 PDF File

DOI of published version

10.1063/9.0000395

Repository

UNI ScholarWorks, Rod Library, University of Northern Iowa

Copyright

©2023 the authors. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Language

en

File Format

application/pdf

Recommended Citation

Kharel, Parashu; Lehmann, Zachary; Baker, Gavin; Stuelke, Lukas; Valloppilly, Shah; Shand, Paul M.; and Lukashev, Pavel V., "Structural, Electronic, And Magnetic Properties Of CoFeVGe-Based Compounds: Experiment And Theory" (2023). Faculty Publications. 5359.
https://scholarworks.uni.edu/facpub/5359