Faculty Publications
Document Type
Article
Publication Version
Published Version
Journal/Book/Conference Title
AIP Advances
Volume
12
Issue
3
Abstract
Half-metallic Heusler alloys have attracted significant attention due to their potential application in spin-transport-based devices. We have synthesized one such alloy, CoFeV0.5Mn0.5Si, using arc melting and high-vacuum annealing at 600 °C for 24 hours. First principles calculation indicates that CoFeV0.5Mn0.5Si shows a nearly half-metallic band structure with a degree of spin polarization of about 93%. In addition, this value can be enhanced by the application of tensile strain. The room temperature x-ray diffraction patterns are indexed with the cubic crystal structure without secondary phases. The annealed sample shows ferromagnetic order with the Curie temperature well above room temperature (Tc = 657 K) and a saturation magnetization of about 92 emu/g. Our results indicate that CoFeV0.5Mn0.5Si has a potential for room temperature spin-transport-based devices.
Department
Department of Physics
Original Publication Date
3-1-2022
Object Description
1 PDF file
DOI of published version
10.1063/9.0000252
Repository
UNI ScholarWorks, Rod Library, University of Northern Iowa
Copyright
©2022 The Authors. Creative Commons Attribution License.
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; Baker, Gavin; Flesche, Matthew; Ramker, Adam; Moua, Young; Valloppilly, Shah; Shand, Paul M.; and Lukashev, Pavel V., "Electronic Band Structure And Magnetism Of Cofev0.5Mn0.5Si" (2022). Faculty Publications. 5231.
https://scholarworks.uni.edu/facpub/5231
