Surface magnetic characterisation of FeSiB amorphous ribbons

Author

Neagu, M. ; Dobromir, M. ; Popa, C. ; Chiriac, H. ; Singurel, Gh. ; Hison, C.

Author_Institution

Fac. of Phys., Al.I. Cuza Univ., Iasi, Romania

fYear

2005

fDate

4-8 April 2005

Firstpage

293

Lastpage

294

Abstract

The aim of this paper is to study the surface magnetic properties of the Fe_77.5Si_7.5B₁₅ amorphous ribbons using the magneto-optic Kerr effect. The bulk magnetic behaviour of the samples is also investigated. X-ray diffraction is used to confirm the amorphous state of the samples and atomic force microscopy is utilized to investigate surface topography. Results show that the surface roughness of the studied samples is seen to be high and presents two different kind of topographies: the free side exhibits characteristic conical shape roughness and random distribution, while for the wheel side the roughness tends to organise on certain directions. The coercive magnetic field value, H_c, is higher for the wheel side than for the free side.

Keywords

Kerr magneto-optical effect; X-ray diffraction; atomic force microscopy; boron alloys; coercive force; ferromagnetic materials; iron alloys; silicon alloys; surface magnetism; surface roughness; Fe_77.5Si_7.5B₁₅; X-ray diffraction; amorphous ribbons; atomic force microscopy; coercive magnetic field; conical shape roughness; free side; magneto-optic Kerr effect; surface magnetic characterisation; surface roughness; surface topography; wheel side; Amorphous magnetic materials; Amorphous materials; Atomic force microscopy; Iron; Magnetic properties; Magnetooptic effects; Rough surfaces; Surface roughness; Surface topography; Wheels;

fLanguage

English

Publisher

ieee

Conference_Titel

Magnetics Conference, 2005. INTERMAG Asia 2005. Digests of the IEEE International

Print_ISBN

0-7803-9009-1

Type

conf

DOI

10.1109/INTMAG.2005.1463575

Filename

1463575