article · Japanese Journal of Applied Physics · 2024
Origin of perpendicular magnetic anisotropy in Fe<sub>0.6</sub>Al<sub>0.4</sub>/Cr<sub>0.8</sub>Al<sub>0.2</sub> metallic superlattice
Kentaro Toyoki, Takehiro Minami, Yu Shiratsuchi, Ryoichi Nakatani
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Abstract
Abstract In this study, we investigated a perpendicular magnetic anisotropy (PMA) in a ferromagnet/antiferromagnetic stacking structure without using heavy metal elements. The Fe 0.6 Al 0.4 /Cr 0.8 Al 0.2 /Fe 0.6 Al 0.4 stacked films exhibited perpendicular magnetization. We discussed the origin of the PMA based on the Cr 0.8 Al 0.2 thickness, t Cr–Al (=0.6–3.0 nm) dependences of the uniaxial anisotropy energy density K u , elastic strain ε 1 – ε 3 , and unit cell volume V of the Fe 0.6 Al 0.4 and Cr 0.8 Al 0.2 layers. The K u value was approximately 25 kJ m −3 , independent of t Cr–Al . The positive ε 1 – ε 3 , i.e., the tensile strain in the Cr 0.8 Al 0.2 layer can promote the PMA. The possible degradation of PMA due to the lattice relaxation with increasing t Cr–Al could be compensated by recovering the Cr magnetic moment. Our analysis suggests that PMA is caused by interfacial exchange coupling between ferromagnetic Fe 0.6 Al 0.4 and antiferromagnetic Cr 0.8 Al 0.2 .
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Toyoki, K., Minami, T., Shiratsuchi, Y., & Nakatani, R. (2024). Origin of perpendicular magnetic anisotropy in Fe<sub>0.6</sub>Al<sub>0.4</sub>/Cr<sub>0.8</sub>Al<sub>0.2</sub> metallic superlattice. Japanese Journal of Applied Physics, 63(9), 09SP32. https://doi.org/10.35848/1347-4065/ad78e4
Toyoki, Kentaro, et al. “Origin of perpendicular magnetic anisotropy in Fe<sub>0.6</sub>Al<sub>0.4</sub>/Cr<sub>0.8</sub>Al<sub>0.2</sub> metallic superlattice.” Japanese Journal of Applied Physics, vol. 63, no. 9, 2024, p. 09SP32, https://doi.org/10.35848/1347-4065/ad78e4.
Toyoki, Kentaro, Takehiro Minami, Yu Shiratsuchi, and Ryoichi Nakatani. 2024. “Origin of perpendicular magnetic anisotropy in Fe<sub>0.6</sub>Al<sub>0.4</sub>/Cr<sub>0.8</sub>Al<sub>0.2</sub> metallic superlattice.” Japanese Journal of Applied Physics 63 (9): 09SP32. https://doi.org/10.35848/1347-4065/ad78e4.
Toyoki, K. et al. (2024) ‘Origin of perpendicular magnetic anisotropy in Fe<sub>0.6</sub>Al<sub>0.4</sub>/Cr<sub>0.8</sub>Al<sub>0.2</sub> metallic superlattice’, Japanese Journal of Applied Physics, 63(9), p. 09SP32. Available at: https://doi.org/10.35848/1347-4065/ad78e4.
@article{toyoki2024origin,
title = {{Origin of perpendicular magnetic anisotropy in Fe<sub>0.6</sub>Al<sub>0.4</sub>/Cr<sub>0.8</sub>Al<sub>0.2</sub> metallic superlattice}},
author = {Toyoki, Kentaro and Minami, Takehiro and Shiratsuchi, Yu and Nakatani, Ryoichi},
journal = {Japanese Journal of Applied Physics},
volume = {63},
number = {9},
pages = {09SP32},
year = {2024},
doi = {10.35848/1347-4065/ad78e4}
}Made from the index record. Check names, capitalisation and page numbers against the paper. Need another style? AI for Research has over 10,000.