Anisotropy in thin film galfenol deposited on LiNbO3 as measured by MOKE

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS

卷:529

Article

Clark, Christopher^1,2  Huxley, Andrew^1,2  Czerski, David³  Record, Paul³ 

[1] Univ Edinburgh, Sch Phys & Astron, Edinburgh EH9 3JZ, Midlothian, Scotland

[2] Univ Edinburgh, CSEC, Edinburgh EH9 3JZ, Midlothian, Scotland

[3] Heriot Watt Univ, Sch Engn & Phys Sci, Edinburgh EH14 4AS, Midlothian, Scotland

关键词: Magnetic anisotropy;    FeGa;    Thin film;    MOKE;   

DOI  :  10.1016/j.jmmm.2021.167799

来源: Elsevier

【 摘 要 】

We report the magnetic anisotropy of films of the magnetostrictive alloy galfenol deposited on a LiNbO3 substrate measured with the magneto-optic Kerr effect (MOKE). This anisotropy is present in 250 nm thick films but is absent in 600 nm thick films, most probably showing a loss in epitaxy with thickness. An anisotropy constant of k(u) = 3.45kJm(-3) is deduced. Magnetic stripe domains (width 30 mu m) oriented along the easy axis, parallel to the substrate (1100) axis, could be created and imaged.

【 授权许可】

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