Effects of cobalt substitution in L10 -(Fe,Co)Pt thin films

Shoya Sakamoto, Kumar Srinivasan, Rui Zhang, Oleg Krupin, Keisuke Ikeda, Goro Shibata, Yosuke Nonaka, Zhendong Chi, Masako Sakamaki, Kenta Amemiya, Atsushi Fujimori, Antony Ajan
2017 Physical review B  
We have studied the effect of cobalt substitution in L1_0-Fe_1-xCo_xPt films by means of x-ray magnetic circular dichroism (XMCD) and first-principles calculations. The magnetic moments of Fe (∼2.5 μ_ B) and Co (∼1.5 μ_ B) deduced using XMCD were almost unchanged upon Co doping, and the net magnetization decreases with increasing Co content. Calculation also showed that the 3d electrons that have been added by Co substitution occupy only spin-down bands.
doi:10.1103/physrevb.96.144437 fatcat:bdqufvt47fgpjbjywq7erd7ltq