Magnetic anisotropy and damping in epitaxial Fe-Co-Ni binary and ternary alloy thin films

被引：0

作者：

Ueno, Tomoya ^{[1
]}

Nakano, Takafumi ^{[1
,2
]}

Tsunoda, Masakiyo ^{[2
,3
]}

Yamashita, Shogo ^{[1
]}

Hojo, Takayuki ^{[1
]}

Oogane, Mikihiko ^{[1
,4
]}

机构：

[1] Tohoku Univ, Grad Sch Engn, Dept Appl Phys, Aoba Yama 05, Sendai 9808579, Japan

[2] Tohoku Univ, Res Ctr Green X Tech, Green Goals Initiat, Sendai, Miyagi 9808579, Japan

[3] Tohoku Univ, Grad Sch Engn, Dept Elect Engn, Aoba Yama 05, Sendai 9808579, Japan

[4] Tohoku Univ, Ctr Sci & Innovat Spintron Core Res Cluster Org Ad, Sendai, Miyagi 9808577, Japan

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2025年 / 616卷

关键词：

Magnetic anisotropy; Magnetic damping; Thin film; Ferromagnetic resonance;

D O I：

10.1016/j.jmmm.2025.172841

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We deposited epitaxial thin films of typical ferromagnetic Fe-Co-Ni alloys with various compositions on MgO (001) single crystal substrate by sputtering and then systematically investigated their magnetic anisotropy and magnetic damping constant alpha. The results showed that the magneto-crystalline anisotropy constant K-1 roughly reproduced the composition dependence of bulk single crystals, but the region with K-1 > 0 extended further on the Ni-rich side compared to the bulk's. Additionally, uniaxial magnetic anisotropy on the order of 10(3) erg/cc was manifested in all the films. Regarding alpha, larger values were observed on the Ni-rich alloys, with a tendency to decrease with the addition of Fe or Co. Furthermore, the compositional dependence of alpha was found to replicate the behavior predicted by the Kambersk & yacute; model.

引用

页数：8

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