Modification of magnetic properties in Tb-Fe/Gd-Fe/Tb-Fe trilayer using ion-beam irradiation

被引：3

作者：

Sahoo, Ajit Kumar ^{[1
]}

Talapatra, Abhishek ^{[1
]}

Chelvane, Jeyaramane Arout ^{[2
]}

Mohanty, Jyoti ^{[1
]}

机构：

[1] Indian Inst Technol Hyderabad, Dept Phys, Nanomagnetism & Microscopy Lab, Sangareddy 502285, Telangana, India

[2] Def Met Res Lab, Hyderabad 500058, India

来源：

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2022年 / 128卷 / 03期

关键词：

Perpendicular magnetic anisotropy; Ferrimagnets; Magnetic domains; Ion-beam irradiation; CO THIN-FILMS; GALLIUM IRRADIATION; CO/PT MULTILAYERS; MICROSTRUCTURE; ANISOTROPY; DOMAINS; GDFE;

D O I：

10.1007/s00339-022-05361-y

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper presents the modifications of the magnetic properties of Tb-Fe/Gd-Fe/Tb-Fe trilayer, displaying perpendicular magnetic anisotropy in the pristine state. Irradiation with Ar+ ions at a constant fluence of 10(14) ions/cm(2) with variable incident energies, in the range of 50-150 keV, corresponding to different penetration depths inside the trilayer films, was employed to obtain the tunability in magnetic properties of the trilayer assembly. A spin reorientation transition from perpendicular to the plane of the film could be ascertained even for the lowest energy of irradiation without any major structural modification. The isolated island-like larger magnetic domains, observed for the pristine films, no longer appeared after irradiation. The modifications of magnetic domains and hysteresis loops were understood using micromagnetic simulations, considering the depth-resolved variation of magnetic anisotropies of the top and middle layers. Our work shows a facile route to process anisotropy-engineered magnetic heterostructures using depth-sensitive external perturbation.

引用

页数：8

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