Angular dependence of antisymmetric magnetoresistance in Co-Tb thin films with artificial domain wall inclination.
- Resource Type
- Article
- Authors
- Wang, Zhen; Wang, Li; Su, Yangtao; Xu, Tiankuo; Meng, Yang; Cao, Xinyu; Zhang, Ying; Zhao, Hongwu
- Source
- Journal of Physics D: Applied Physics. 10/12/2023, Vol. 56 Issue 41, p1-6. 6p.
- Subject
- *MAGNETORESISTANCE
*THIN films
*NUMERICAL calculations
*MAGNETIZATION
- Language
- ISSN
- 0022-3727
We report the observation of angular-dependent antisymmetric magnetoresistance (MR) in artificially deformed Co-Tb Hall bar structures with perpendicular magnetization. Simultaneous transport measurements and domain imaging show that the antisymmetric MR results from the generation of a single domain wall (DW) inclination due to the restricted geometry and is further proportional to the inclination-associated geometry factor. The results are well described by a theoretical model that is supported by analytic and numerical calculations of the nonequilibrium current and Hall voltage distribution in the vicinity of the inclined DW. This finding provides a straightforward and effective approach to control DW geometries, leading to various DW-based spintronic device applications. [ABSTRACT FROM AUTHOR]