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- Title
Observation of Magnetic Domains in Amorphous Magnetic Wires with a Diameter of 10 μm Used in GSR Sensors.
- Authors
Takezawa, Masaaki; Harada, Yuki; Honkura, Yoshinobu; Honkura, Shinpei
- Abstract
The core of a Gigahertz Spin Rotation (GSR) sensor, a compact and highly sensitive magnetic sensor, is composed of Co–Fe-based amorphous magnetic wire with a diameter of 10 μm. Observations of the magnetic domain structure showed that this magnetic wire has unusual magnetic noise characteristics. Bamboo-shaped magnetic domains a few hundred micrometers in width were observed to form inside the wire, and smaller domains a few micrometers across were observed to form inside these larger domains. The magnetic domain pattern changed abruptly when an external magnetic field was applied to the wire. Herein is shown how these changes may be a source of magnetic noise in the wire.
- Subjects
MAGNETIC domain; MAGNETIC noise; MAGNETIC structure; MAGNETIC sensors; MAGNETIC fields
- Publication
Sensors (14248220), 2023, Vol 23, Issue 7, p3506
- ISSN
1424-8220
- Publication type
Article
- DOI
10.3390/s23073506