Surface Magnetization Reversal of Wiegand Wire Measured by the Magneto-Optical Kerr Effect

被引：4

作者：

Nakamura, Tomoaki ^{[1
]}

Tanaka, Hiroki ^{[1
]}

Horiuchi, Tomofumi ^{[1
]}

Yamada, Tsutomu ^{[1
]}

Takemura, Yasushi ^{[1
]}

机构：

[1] Yokohama Natl Univ, Dept Elect & Comp Engn, Yokohama, Kanagawa 2408501, Japan

来源：

MATERIALS | 2021年 / 14卷 / 18期

关键词：

Wiegand wire; Wiegand effect; magneto-optical Kerr effect (MOKE); magnetization reversal; large Barkhausen jump; LARGE BARKHAUSEN JUMP; PROPAGATION; FIELD;

D O I：

10.3390/ma14185417

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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.

引用

页数：7

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