English

Spin valve effect in two-dimensional VSe$_2$ system

Materials Science 2022-01-24 v1 Mesoscale and Nanoscale Physics

Abstract

Vanadium based dichalcogenides, VSe2_2, are two-dimensional materials in which magnetic Vanadium atoms are arranged in a hexagonal lattice and are coupled ferromagnetically within the plane. However, adjacent atomic planes are coupled antiferromagnetically. This provides new and interesting opportunities for application in spintronics and data storage and processing technologies. A spin valve magnetoresistance may be achieved when magnetic moments of both atomic planes are driven to parallel alignment by an external magnetic field. The resistance change associated with the transition from antiparallel to the parallel configuration is qualitatively similar to that observed in artificially layered metallic magnetic structures. Detailed electronic structure of VSe2_2 was obtained from DFT calculations. Then, the ballistic spin-valve magnetoresistance was determined within the Landauer formalism. In addition, we also analyze thermal and thermoelectric properties. Both phases of VSe2_2, denoted as H and T, are considered.

Keywords

Cite

@article{arxiv.2201.08420,
  title  = {Spin valve effect in two-dimensional VSe$_2$ system},
  author = {M. A. Jafari and M. Wawrzyniak-Adamczewska and S. Stagraczyński and A. Dyrdal and J. Barnaś},
  journal= {arXiv preprint arXiv:2201.08420},
  year   = {2022}
}

Comments

This paper is including 8 pages as well as 4 figures

R2 v1 2026-06-24T08:57:09.050Z