Magnetic properties of Co/Pt multilayers based on magneto-optical effect
PDF (Vietnamese)

Keywords

cấu trúc đô men từ
màng mỏng đa lớp
hiệu ứng quang từ magnetic domain structure
multilayers
magneto-optical effect

How to Cite

1.
Quách DT. Magnetic properties of Co/Pt multilayers based on magneto-optical effect. hueuni-jns [Internet]. 2023Sep.30 [cited 2024Nov.23];132(1C):61-7. Available from: http://222.255.146.83/index.php/hujos-ns/article/view/7212

Abstract

Magnetic properties and domain structures of (Co-t nm/Pt-0,8 nm)5 (t = 0.3, 0.5, and 0.6) multilayers with perpendicular magnetic anisotropy fabricated by magnetron sputtering were investigated based on the magneto-optical (Kerr) effect. The results show that there are significant changes in their magnetic properties, as well as domain structures when increasing the thickness of the magnetic layers from 0.3 to 0.6 nm. With the increase of the thickness of the magnetic layers, the hysteresis loops of the multilayers change from circular-like to stripe-like structures. Furthermore, their magnetization reversals shift from being easy to completely reversible with small t and to being difficult to completely reversible with large t.

https://doi.org/10.26459/hueunijns.v132i1C.7212
PDF (Vietnamese)

References

  1. Chappert C, Fert A, Van Dau FN. The emergence of spin electronics in data storage. Nature Materials. 2007;6(11):813-23.
  2. Sbiaa R, Meng H, Piramanayagam SN. Materials with perpendicular magnetic anisotropy for magnetic random access memory. 2011;5(12):413-9.
  3. Mangin S, Ravelosona D, Katine JA, Carey MJ, Terris BD, Fullerton EE. Current-induced magnetization reversal in nanopillars with perpendicular anisotropy. Nature Materials. 2006;5(3):210-5.
  4. Iunin YL, Kabanov YP, Nikitenko VI, Cheng XM, Clarke D, Tretiakov OA, et al. Asymmetric Domain Nucleation and Unusual Magnetization Reversal in Ultrathin Co Films with Perpendicular Anisotropy. Physical Review Letters. 2007;98(11):117204.
  5. Kisielewski M, Maziewski A, Tekielak M, Ferré J, Lemerle S, Mathet V, et al. Magnetic anisotropy and magnetization reversal processes in Pt/Co/Pt films. Journal of Magnetism and Magnetic Materials. 2003;260(1):231-43.
  6. Iunin YL, Kabanov YP, Nikitenko VI, Cheng XM, Chien CL, Shapiro AJ, et al. Magnetic field dependence of asymmetry in the magnetization reversal of ultrathin Co films and Co/Pt multilayers with perpendicular anisotropy. Journal of Magnetism and Magnetic Materials. 2008;320(15):2044-8
  7. Berger A, Mangin S, McCord J, Hellwig O, Fullerton EE. Cumulative minor loop growth in Co/Pt and Co/Pd multilayers. Physical Review B. 2010;82(10):104423.
  8. Truong QD. Magnetic properties and domain structure of CoFeB/Pd multilayers with perpendicular magnetic anisotropy. Vietnam Journal of Science and Technology. 2019;57(6):685-92.
  9. Quach DT, Lee SH, Kim DH. Investigation of Microscopic Demagnetization Process Using Magneto-Optical Microscopy. IEEE Transactions on Magnetics. 2014;50(6):1-4.
  10. Ngo D-T, Quach D-T, Tran Q-H, Møhave K, Phan T-L, Kim D-H. Perpendicular magnetic anisotropy and the magnetization process in CoFeB/Pd multilayer films. Journal of Physics D: Applied Physics. 2014;47(44):445001.
  11. Burrowes C, Vernier N, Adam J-P, Herrera Diez L, Garcia K, Barisic I, et al. Low depinning fields in Ta-CoFeB-MgO ultrathin films with perpendicular magnetic anisotropy. Applied Physics Letters. 2013;103(18).
  12. Jaiswal S, Lee K, Langer J, Ocker B, Kläui M, Jakob G. Tuning of interfacial perpendicular magnetic anisotropy and domain structures in magnetic thin film multilayers. Journal of Physics D: Applied Physics. 2019;52(29):295002.
  13. Jamali M, Narayanapillai K, Qiu X, Loong LM, Manchon A, Yang H. Spin-Orbit Torques in Co/Pd Multilayer Nanowires. Physical Review Letters. 2013;111(24):246602.
  14. Sbiaa R, Ranjbar M, Åkerman J. Domain structures and magnetization reversal in Co/Pd and CoFeB/Pd multilayers. Journal of Applied Physics. 2015;117(17).
Creative Commons License

This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

Copyright (c) 2023 Array