Vanadium Tetrafluoride as a Candidate Altermagnet: A First-Principles Approach
POSTER
Abstract
Altermagnetism (AM) is a recently discovered magnetic ordering that combines characteristics of both ferromagnets (FMs) and antiferromagnets (AFMs). Two-dimensional vanadium tetrafluoride (VF4) has been proposed as a candidate altermagnet. In this study, we employ first-principles methods using the DFT codes Quantum ESPRESSO and SIESTA to investigate the magnetic properties of VF₄, focusing on spin-split band structures in AFM configurations and quantum transport characteristics. We find that both monolayer VF₄ (with a 20 Å vacuum layer) and bulk VF4 exhibit non-relativistic spin splitting along a general k-path when configured antiferromagnetically, indicating that spin splitting is a robust feature of this material in both 2D
*This research was made possible thanks to a grant from the National Science Foundation REU Program, Grant No. 2349581. The computing for this project was performed at the High Performance Computing Center at Oklahoma State University supported in part through the National Science Foundation grant OAC-1531128.
Presenters
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Marc A Thys
- University of Puerto Rico