Structural and magnetic properties of bulk Mn2PtSn

J. Herran, S. Prophet, Y. Jin, S. Valloppilly, P. R. Kharel, D. J. Sellmyer, P. V. Lukashev

Research output: Contribution to journalArticle

Abstract

Interplay between structural and magnetic order parameters is one of the key mechanisms of tuning properties of materials intended for device applications in spintronics. Here, using density functional calculations, we study combined effects of tetragonal distortion and non-collinear magnetic order in Mn2PtSn. We show that this material has two energetically close energy minimums corresponding to tetragonal lattice. In one of these phases, Mn2PtSn exhibits ferrimagnetic order with nearly fully compensated total magnetic moment, while in the other phase that corresponds to the lowest energy, a non-collinear magnetic arrangement emerges, with very large canting angle of the Mn local magnetic moments. The non-collinear alignment is explained through the interplay of exchange couplings between nearest and next nearest neighbor Mn atoms. Results are compared with those reported in recent literature, both experimental and theoretical.

Original languageEnglish (US)
Article number475801
JournalJournal of Physics Condensed Matter
Volume30
Issue number47
DOIs
Publication statusPublished - Oct 31 2018

    Fingerprint

Keywords

  • DFT calculations
  • Heusler alloys
  • non-collinear magnetism

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Herran, J., Prophet, S., Jin, Y., Valloppilly, S., Kharel, P. R., Sellmyer, D. J., & Lukashev, P. V. (2018). Structural and magnetic properties of bulk Mn2PtSn. Journal of Physics Condensed Matter, 30(47), [475801]. https://doi.org/10.1088/1361-648X/aae652