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Open AccessArticle

Static and Dynamic Magnetic Properties of FeGa/FeNi (FeNi/FeGa) Bilayer Structures

1
Department of Applied Physics, Chang’an University, Xi’an 710064, China
2
Center for Spintronics and Quantum Systems, State Key Laboratory for Mechanical Behavior of Materials, Xi’an Jiaotong University, Xi’an 710049, China
3
College of Physics, National Demonstration Center for Experimental Applied Physics Education, Qingdao University, Qingdao 266071, China
*
Author to whom correspondence should be addressed.
Coatings 2020, 10(4), 383; https://doi.org/10.3390/coatings10040383
Received: 9 March 2020 / Revised: 1 April 2020 / Accepted: 6 April 2020 / Published: 14 April 2020
(This article belongs to the Special Issue Surface and Thin Film Magnetism)
FeGa/FeNi bilayer structures with different deposition order were fabricated by the electrodeposition method on indium tin oxide (ITO) substrates. The structure, morphology, static and dynamic magnetic properties of FeGa/FeNi (FeNi/FeGa) films were investigated. The bilayer structures exhibit extremely various magnetic properties with different deposition order which could be attributed to the different coupling interaction in the interface. When FeGa is on top, the bilayer structures show lower coercivity than when FeNi is on top. Meanwhile, increase of the proportion of FeNi in the bilayer structure could affect the Hc and Mr/Ms. The ferromagnetic resonance peak of FeGa on top moves to a high field compared with FeNi on top. Moreover, FeGa on top shows improved complex permeability and a clear resonant phenomenon of the magnetization. These properties make FeGa/FeNi bilayer structure a potential candidate for high-frequency application. View Full-Text
Keywords: FeGa/FeNi bilayer structure; electrodeposition; coercivity; ferromagnetic resonance; permeability FeGa/FeNi bilayer structure; electrodeposition; coercivity; ferromagnetic resonance; permeability
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MDPI and ACS Style

Wang, Z.; Wang, F.; Hou, Z.; Xu, C.; Cao, D. Static and Dynamic Magnetic Properties of FeGa/FeNi (FeNi/FeGa) Bilayer Structures. Coatings 2020, 10, 383.

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