Structural and magnetic properties of bulk Mn2PtSn
DFT calculations, Heusler alloys, non-collinear magnetism
Journal of Physics Condensed Matter
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.
Department of Physics
Original Publication Date
DOI of published version
UNI ScholarWorks, Rod Library, University of Northern Iowa
Herran, J.; Prophet, S.; Jin, Y.; Valloppilly, S.; Kharel, P. R.; Sellmyer, D. J.; and Lukashev, P. V., "Structural and magnetic properties of bulk Mn2PtSn" (2018). Faculty Publications. 645.