Structural, magnetic, and electron transport properties of MnBi:Fe thin films

Authors

Parashu Kharel, University of Nebraska - LincolnFollow
Xingzhong Li, University of Nebraska-LincolnFollow
Shah R. Valloppilly, University of Nebraska-LincolnFollow
Nabil M. Al-Aqtash, University of Nebraska at OmahaFollow
K. Tarawneh, Princes Sumaya University for Technology (PSUT)
Renat F. Sabirianov, University of Nebraska - OmahaFollow
Ralph Skomski, University of Nebraska-LincolnFollow
David J. Sellmyer, University of Nebraska-LincolnFollow

Date of this Version

2012

Citation

JOURNAL OF APPLIED PHYSICS 111, 07E326 (2012); doi:10.1063/1.3675615

Comments

Copyright VC 2012 American Institute of Physics.

Abstract

The structural, magnetic, and electron transport properties of Mn55=xFexBi45 (x¼0, 2, 4, 5, 8, 11, 13, 16) films prepared by multilayer deposition and annealing using e-beam evaporation have been investigated. Fe doping has produced a significant change in the magnetic properties of the samples including the decrease in saturation magnetization and magnetocrystalline anisotropy and increase in coercivity. Although the magnetization shows a smooth decrease with increasing Fe concentration, the coercivity jumps abruptly from 8.5 kOe to 22 kOe as Fe content changes from 4% to 5%, but the change in coercivity is small as the concentration goes beyond 5%. The temperature dependence of resistivity shows that the samples with low Fe concentration (