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.
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页数：5
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