Faculty Publications
Structural, Magnetic, And Electron-Transport Properties Of Epitaxial Mn2Ptsn Films
Document Type
Article
Journal/Book/Conference Title
Journal of Applied Physics
Volume
124
Issue
10
Abstract
The growth of new magnetic materials on suitable insulating substrates is an important part of the development of spin-electronics devices for memory or information processing. Epitaxial thin films of Mn2PtSn were grown on a MgO [001] substrate by magnetron co-sputtering of the constituents. Structural, magnetic, and electron-transport properties were investigated. The epitaxial Mn2PtSn film has an inverse tetragonal structure with the c-axis aligned in the plane of the MgO substrate. The lattice constants determined using XRD and TEM analysis are c = 6.124 Å and a = b = 4.505 Å. The orientation of Mn2PtSn c-axis which is 45° away from the a-axis of MgO has resulted in a small lattice mismatch of about 2.8%. The measured saturation magnetization is 5.3 μB/f.u., which is smaller than the first-principles calculated value of 6.4 μB/f.u. for ferromagnetic spin arrangement. Magnetization measurements determined the bulk magnetocrystalline anisotropy constant Kv of about 11.3 Merg/cm3 (1.13 MJ/m3). The electron-transport behavior is similar to that of normal magnetic metals. These results indicate that Mn2PtSn may have promising applications in spintronic devices.
Department
Department of Physics
Original Publication Date
9-14-2018
DOI of published version
10.1063/1.5045667
Repository
UNI ScholarWorks, Rod Library, University of Northern Iowa
Language
en
Recommended Citation
Jin, Y.; Valloppilly, S.; Kharel, P.; Waybright, J.; Lukashev, P.; Li, X. Z.; and Sellmyer, D. J., "Structural, Magnetic, And Electron-Transport Properties Of Epitaxial Mn2Ptsn Films" (2018). Faculty Publications. 671.
https://scholarworks.uni.edu/facpub/671
