期刊
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
卷 552, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.jmmm.2022.169227
关键词
Magnetic multilayers; Co2FeSi/Pt superlattices; Interfacial perpendicular magnetic anisotropy; Magnetic properties; Spintronic devices
资金
- National Natural Science Foundation of China [51961004]
This study demonstrates the existence of perpendicular magnetic anisotropy (PMA) in multilayers consisting of Co2FeSi (CFS) and Pt, with PMA strongly influenced by the thicknesses of Pt spacer and CFS layer, as well as the number of interfaces. Two-step switching is observed in multilayers with an 8 nm Pt spacer, indicating a decoupled feature. The effective perpendicular anisotropy energy is determined to be in the order of 10(6) erg/cm(3), and the interfacial perpendicular anisotropy energy density is estimated to be 0.32 erg/cm(2). The magnetic reversal with multi-domain feature is observed with increasing interface number.
A series of multilayers consisting of Co2FeSi (CFS) and Pt are sputtered. Perpendicular magnetic anisotropy (PMA) is demonstrated in the CFS/Pt multilayers with CFS thickness in the range of 0.4 similar to 1.0 nm. The individual thicknesses of Pt spacer and Co2FeSi layer as well as interface numbers are shown to strongly affect PMA. Twostep switching is observed in the multilayers with 8 nm Pt spacer, showing typically decoupled feature. The effective perpendicular anisotropy energy is determined to be in the order of 10(6) erg/cm(3). The interfacial perpendicular anisotropy energy density is estimated to be 0.32 erg/cm(2). The magnetic reversal with multi domain feature is observed with increasing interface number. Sufficiently large saturation magnetization is derived from the multilayers with various repetitions. The thickness of magnetic dead layer is found to increase with the number of interface, which may be ascribed to more interdiffusion occurring at the multi-interfaces. Our results provide some useful information for the design and development of spintronic devices based on CFS/Pt multilayers.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据