Shalyguina, EE Bekoeva, LM Shin, KH 2024-01-21T14:14:53Z 2024-01-21T14:14:53Z 2021-09-04 2000-03 1005-0302 https://pubs.kist.re.kr/handle/201004/141555 Results on the magneto-optical investigation of near-surface micromagnetic structure (MMS) of Co69Fe4Si12B15 amorphous wires 10 similar to 50 mu m in diameter are presented. The wires were prepared by the rapid solidification technique. The magnetic field H was applied along or perpendicular to the wire length. By scanning the light spot of 1 mu m-diameter along the wire length, distributions of magnetization components (both parallel and perpendicular to the applied magnetic field) and also local hysteresis characteristics of the wires were measured. It was experimentally established that owing to the compressive stresses from quenching coupled with negative magnetostriction of Go-rich amorphous materials, the examined microwires have a circumferential magnetic anisotropy. In consequence, there are the near-surface alternate left- and right-handled circular domains in these samples. The dependencies of the circular domain width on the wire diameter and length were found. It was discovered that in the axial magnetic field local hysteresis loops are unhysteretic. It was proved that in this case the dominant mechanism of the wire magnetization reversal is rotation of local magnetization vectors in circular domains. English JOURNAL MATER SCI TECHNOL Micromagnetic structure of Co-rich amorphous microwires Article 1 JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, v.16, no.2, pp.183 - 185 JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 16 2 183 185 scie scopus 000086285900034 2-s2.0-0034155579 Materials Science, Multidisciplinary Metallurgy & Metallurgical Engineering Materials Science Metallurgy & Metallurgical Engineering Article magneto-optical micromagnetic domain structure microwires