Surface magnetic properties and domains observation in as-quenched and annealed FeNbB ribbons

0343058 - FZÚ 2011 RIV NL eng J - Článek v odborném periodiku
Životský, O. - Postava, K. - Kraus, Luděk - Hrabovská, K. - Hendrych, A. - Pištora, J.
Surface magnetic properties and domains observation in as-quenched and annealed FeNbB ribbons.
Journal of Magnetism and Magnetic Materials. Roč. 322, 9-12 (2010), 1523-1526. ISSN 0304-8853. E-ISSN 1873-4766
Grant CEP: GA ČR GA102/08/0743; GA AV ČR KAN400100653
Výzkumný záměr: CEZ:AV0Z10100520
Klíčová slova: magneto-optic Kerr effect * magnetic domain * magnetic anisotropy * amorphous and nanocrystalline ribbon
Kód oboru RIV: BM - Fyzika pevných látek a magnetismus
Impakt faktor: 1.689, rok: 2010

The longitudinal magneto-optical Kerr effect combined with the magneto-optical microscopy is used to investigate the surface magnetic anisotropy and the domain behavior in as-quenched and strain-annealed FeNbB ribbons. A magnetically harder layer (about 1.3 micron thick), consisting of crystallites embedded in an amorphous matrix has been found on the ribbon air side. The underneath bulk phase is amorphous and magnetically soft. Wide in-plane domains with 180 derees walls and narrow fingerprint domains, corresponding to amorphous phase are gradually overlapped by strip domains with magnetization directions almost perpendicular to the ribbon axis originating from the surface hard magnetic layer.
Trvalý link: http://hdl.handle.net/11104/0185624