Surface Magnetization Reversal of Wiegand Wire Measured by the Magneto-Optical Kerr Effect
Department of Electrical and Computer Engineering, Yokohama National University, Yokohama 240-8501, Japan
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Author to whom correspondence should be addressed.
Academic Editor: Andrea Piovano
Materials 2021, 14(18), 5417; https://doi.org/10.3390/ma14185417
Received: 20 July 2021
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Revised: 28 August 2021
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Accepted: 15 September 2021
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Published: 19 September 2021
(This article belongs to the Section Electronic Materials)
The Wiegand wire is known to exhibit a unique feature of fast magnetization reversal in the magnetically soft region accompanied by a large Barkhausen jump. We clarified a significant difference between the magnetization reversals at the surface and at the entire cross section of a Wiegand wire. We conducted magnetization measurements based on the magneto-optical Kerr effect and applied conventional methods to determine the magnetization curves. The switching field of the magnetization reversal at the surface was greater than that at the initiation of a large Barkhausen jump. Our analysis suggests that the outer surface layer exhibits low coercivity.
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Keywords:
Wiegand wire; Wiegand effect; magneto-optical Kerr effect (MOKE); magnetization reversal; large Barkhausen jump
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MDPI and ACS Style
Nakamura, T.; Tanaka, H.; Horiuchi, T.; Yamada, T.; Takemura, Y. Surface Magnetization Reversal of Wiegand Wire Measured by the Magneto-Optical Kerr Effect. Materials 2021, 14, 5417. https://doi.org/10.3390/ma14185417
AMA Style
Nakamura T, Tanaka H, Horiuchi T, Yamada T, Takemura Y. Surface Magnetization Reversal of Wiegand Wire Measured by the Magneto-Optical Kerr Effect. Materials. 2021; 14(18):5417. https://doi.org/10.3390/ma14185417
Chicago/Turabian StyleNakamura, Tomoaki, Hiroki Tanaka, Tomofumi Horiuchi, Tsutomu Yamada, and Yasushi Takemura. 2021. "Surface Magnetization Reversal of Wiegand Wire Measured by the Magneto-Optical Kerr Effect" Materials 14, no. 18: 5417. https://doi.org/10.3390/ma14185417
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