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High coercive field in TbFe/Fe/TbFe exchange-coupled system with mixed magnetic anisotropy.
- Source :
-
Applied Physics A: Materials Science & Processing . Jun2023, Vol. 129 Issue 6, p1-6. 6p. 1 Color Photograph, 1 Diagram, 2 Graphs. - Publication Year :
- 2023
-
Abstract
- In this article, the structural, magnetic, and microscopic properties of exchange-coupled TbFe/Fe/TbFe system are presented. Both TbFe layers exhibit out-of-plane magnetization, and Fe spacer layer ( S F ) has in-plane magnetization, whereas the entire exchange-coupled system shows considerable enhancement in magnetic properties. By increasing the thickness of S F from 2 to 20 nm, the out-of-plane coercive field and saturation magnetization get enhanced by more than thrice. Perpendicular anisotropy gets tailored as the thickness of S F increases, which also affects the microscopic magnetic domains. Maze-like magnetic domains have been observed at S F = 2 nm; however, domains get diffused and agglomerated upon further increment in thickness of S F . In addition, tilt in effective anisotropy has been achieved in the presence of S F , which is also verified using micromagnetic modeling. The results obtained in TbFe/Fe/TbFe exchange-coupled systems have the potential to be used in magnetic storage technology for hard disk drives. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 09478396
- Volume :
- 129
- Issue :
- 6
- Database :
- Academic Search Index
- Journal :
- Applied Physics A: Materials Science & Processing
- Publication Type :
- Academic Journal
- Accession number :
- 164396573
- Full Text :
- https://doi.org/10.1007/s00339-023-06678-y