Modification of the Interfacial Dzyaloshinskii–Moriya Interaction in Cobalt/Heavy Metal Films Irradiated with Helium Ions,Physics of the Solid State

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Modification of the Interfacial Dzyaloshinskii–Moriya Interaction in Cobalt/Heavy Metal Films Irradiated with Helium Ions
Physics of the Solid State ( IF 0.9 ) Pub Date : 2022-02-17 , DOI: 10.1134/s1063783421090110
N. S. Gusev ₁ , M. V. Sapozhnikov _{1,

2} , Yu. A. Dudin ₃ , A. V. Sadovnikov _{4,

5}

Affiliation

Abstract

The effect of irradiation with helium ions of thin cobalt films on a layer of heavy metals (Pt and W) on the interfacial Dzyaloshinskii–Moriya interaction (iDMI) is studied experimentally. The iDMI value is measured via Brillouin light scattering (BLS). The hysteresis loops of the samples are measured via optical magnetometry. The iDMI value varies nonmonotonically in the range of 0.1–0.6 J m^–2 at fluences of 10¹⁴‒10¹⁶ cm^–2.

中文翻译：

用氦离子辐照的钴/重金属薄膜中界面 Dzyaloshinskii-Moriya 相互作用的改性

摘要

实验研究了用薄钴膜的氦离子辐照一层重金属（Pt 和 W）对界面 Dzyaloshinskii-Moriya 相互作用 (iDMI) 的影响。iDMI 值通过布里渊光散射 (BLS) 测量。样品的磁滞回线通过光学磁力计测量。iDMI 值在10 ¹⁴ ‒10 ¹⁶ cm ^{-2的通量下在 0.1-0.6 J m}^-2范围内非单调变化。

更新日期：2022-02-17

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