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Magnetic Structure of Wiegand Wire Analyzed by First-Order Reversal Curves
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Magnetic Structure of Wiegand Wire Analyzed by First-Order Reversal Curves
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Journal Article
Magnetic Structure of Wiegand Wire Analyzed by First-Order Reversal Curves
2022
Overview
Various coercive force field components in Wiegand wire exhibit a significant magnetization reversal under an applied magnetic field. A fast magnetization reversal is accompanied by a large Barkhausen jump, which induces a pulse voltage in a pickup coil wound around the Wiegand wire which serves as a power source for the devices or sensors. This study aims to elucidate the magnetization reversal in the Wiegand wire by using a first-order reversal curve (FORC) diagram method. The magnetic structure of the Wiegand wire typically comprises three layers: a soft layer, middle layer, and hard layer. In this study, we analyze the coercive and interactive force fields between the adjacent layers. The results demonstrate a high coercivity of the center core and a lower coercivity of the outer layer of the wire.
