Effect(s) of Cobalt Substitution in $L1_{0}$-(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

doi:10.1103/PhysRevB.96.144437

Effect(s) of Cobalt Substitution in $L1_{0}$-(Fe,Co)Pt Thin Films

Materials Science 2017-11-08 v1

Authors: Shoya Sakamoto , Kumar Srinivasan , Rui Zhang , Oleg Krupin , Keisuke Ikeda , Goro Shibata , Yosuke Nonaka , Zhendong Chi , Masako Sakamaki , Kenta Amemiya , Atsushi Fujimori , Antony Ajan

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Abstract

We have studied the effect of cobalt substitution in $L1_{0}$ -Fe $_{1-x}$ Co $_{x}$ Pt films by means of x-ray magnetic circular dichroism (XMCD) and first-principles calculations. The magnetic moments of Fe ( $\sim$ 2.5 $\mu_{\rm B}$ ) and Co ( $\sim$ 1.5 $\mu_{\rm B}$ ) deduced using XMCD were almost unchanged upon Co doping, and the net magnetization decreases with increasing Co content. Calculation also showed that the 3 $d$ electrons that have been added by Co substitution occupy only spin-down bands.

Keywords

cobalt substitution l10-(fe,co)pt thin films x-ray magnetic circular dichroism first-principles calculations magnetic moments net magnetization spin-down bands

Cite

@article{arxiv.1710.03927,
  title  = {Effect(s) of Cobalt Substitution in $L1_{0}$-(Fe,Co)Pt Thin Films},
  author = {Shoya Sakamoto and Kumar Srinivasan and Rui Zhang and Oleg Krupin and Keisuke Ikeda and Goro Shibata and Yosuke Nonaka and Zhendong Chi and Masako Sakamaki and Kenta Amemiya and Atsushi Fujimori and Antony Ajan},
  journal= {arXiv preprint arXiv:1710.03927},
  year   = {2017}
}

Effect(s) of Cobalt Substitution in $L1_{0}$-(Fe,Co)Pt Thin Films

Abstract

Keywords

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