Surface and bulk magnetic properties of as-quenched FeNbB ribbons

• Published in: Journal of magnetism and magnetic materials Vol. 320; no. 8; pp. 1535 - 1540
• Main Authors: Životský, O., Postava, K., Kraus, L., Jirásková, Y., Juraszek, J., Teillet, J., Barčová, K., Švec, P., Janičkovič, D., Pištora, J.
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 01-04-2008; Elsevier Science
• Subjects: Condensed matter: electronic structure, electrical, magnetic, and optical properties; Depth profile; Domain effects, magnetization curves, and hysteresis; Exact sciences and technology; Fe-based ribbons; Magnetic properties and materials; Magnetic properties of surface, thin films and multilayers; Magnetization curves, magnetization reversal, hysteresis, barkhausen and related effects; Physics; Surface magnetism; Surface nanocrystallization; 42.25.Fx; Surface nanocrystallization; Depth profile; 75.70.−i; Fe-based ribbons; 75.20.En; 75.25.+z; 75.50.Kj; 75.30.Gw; 76.80.+y; Crystalline phase; Surface nanocrystallization; Fe-based ribbons; Depth profile; Moessbauer effect; 42.25.Fx; 75.20.En; 75.25.+z; 75.30.Gw; 75.50.Kj; 75.70.-i; 76.80.+y; Magnetization; Surface magnetism; Kerr magneto-optical effect; Niobium alloys; Iron alloys; Coexistence; XRD; Amorphous phase; Boron alloys; Conversion electron spectra; Non destructive method; Depth profiles; Nanocrystal; Transition element alloys; Magnetic properties
• ISSN: 0304-8853
• DOI: 10.1016/j.jmmm.2008.01.003

The surface and bulk magnetic properties of amorphous FeNbB ribbons in as-quenched state are investigated using various non-destructive methods. The conversion electron Mössbauer spectroscopy has detected the presence of crystalline phase at both surfaces of ribbon sample while the bulk was amorphous. The coexistence of crystalline and amorphous phase was shown also in the X-ray diffraction pattern. Magnetic properties measured by bulk sensitive vibrating sample magnetometer (VSM) strongly differs from the surface characteristics investigated by magneto-optical Kerr effect (MOKE).