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

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

We have studied the effect of cobalt substitution in L10−Fe1−xCoxPt films by means of x-ray magnetic circular dichroism (XMCD) and first-principles calculations. The magnetic moments of Fe (∼2.5μB) and Co (∼1.5μB) deduced using XMCD were almost unchanged upon Co doping, and the net magnetization dec...

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Veröffentlicht in:Physical review. B 2017-10, Vol.96 (14)
Hauptverfasser: Sakamoto, Shoya, Srinivasan, Kumar, Zhang, Rui, Krupin, Oleg, Ikeda, Keisuke, Shibata, Goro, Nonaka, Yosuke, Chi, Zhendong, Sakamaki, Masako, Amemiya, Kenta, Fujimori, Atsushi, Ajan, Antony
Format: Artikel
Sprache:eng
Schlagworte:
Cobalt
Dichroism
First principles
Iron
Magnetic moments
Magnetism
Mathematical analysis
Substitutes
Thin films
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Zusammenfassung:We have studied the effect of cobalt substitution in L10−Fe1−xCoxPt films by means of x-ray magnetic circular dichroism (XMCD) and first-principles calculations. The magnetic moments of Fe (∼2.5μB) and Co (∼1.5μB) 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.
ISSN:2469-9950
2469-9969
DOI:10.1103/PhysRevB.96.144437