Magnetic textures and perpendicular anisotropy in asymmetric multilayers with Ta and W

被引：0

作者：

Al Shukaili, S. ^{[1
]}

Berrai, I. ^{[2
]}

Al Ma'Mari, F. ^{[1
]}

Ramu, M. ^{[3
]}

Bhatti, S. ^{[3
]}

Myint, M. T. Zar ^{[1
]}

Al Harthi, S. ^{[1
]}

Cherif, S. M. ^{[2
]}

Piramanayagam, S. N. ^{[3
]}

Sbiaa, R. ^{[1
]}

机构：

[1] Sultan Qaboos Univ, Coll Sci, Dept Phys, POB 36, Muscat 123, Oman

[2] Univ Sorbonne Paris Nord, LSPM, CNRS, 99 Ave Jean Baptiste Clement, F-93430 Villetaneuse, France

[3] Nanyang Technol Univ, Sch Phys & Math Sci, 21 Nanyang Link, Singapore 637371, Singapore

来源：

APPLIED PHYSICS LETTERS | 2024年 / 125卷 / 22期

基金：

新加坡国家研究基金会;

关键词：

DZYALOSHINSKII-MORIYA INTERACTION; SKYRMIONS; DEPENDENCE;

D O I：

10.1063/5.0239692

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Asymmetric (Pt/Co/X) multilayers where X is Ta or W have been investigated. Both structures showed a tailed hysteresis loop indicating the existence of skyrmions. The interfacial Dzyaloshinskii-Moriya interaction (iDMI) extracted from Brillouin light scattering revealed that sample with W has a value of -0.52 mJ/m(2), which is similar to 2.5 times larger than Ta case. In addition to iDMI, the perpendicular magnetic anisotropy is also stronger for W case due to the orbital hybridization at the interface. From magnetic force microscopy, W sample showed a change from unusual rod-like domains to skyrmions, while the change was from labyrinth domains to skyrmions in Ta-based structure.

引用

页数：5

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