Europhys. Lett.
Volume 68, Number 4, November 2004
Page(s) 582 - 588
Section Condensed matter: electronic structure, electrical, magnetic, and optical properties
Published online 20 October 2004
Europhys. Lett., 68 (4), pp. 582-588 (2004)
DOI: 10.1209/epl/i2004-10230-6

The magnetic structure of $\chem{Fe_{78}Si_{9}B_{13}}$ commercial metallic glasses

A. R. Wildes1, N. Cowlam2, Q. A. Pankhurst3, S. Al-Heniti4 and M. R. J. Gibbs2

1  Institut Laue-Langevin - BP 156, 38042 Grenoble Cédex 9, France
2  Department of Physics and Astronomy University of Sheffield - Sheffield S3 7RH, UK
3  London Centre for Nanotechnology and Department of Physics and Astronomy University College London - London WC1E 6BT, UK
4  Department of Physics, King Abdulaziz University - Jeddah 21589, Saudi Arabia

received 12 February 2004; accepted in final form 20 September 2004
published online 20 October 2004

X-ray and polarized neutron scattering techniques have been used to examine the magnetic structure of wide-ribbon $\chem{Fe_{78}Si_{9}B_{13}}$ commercial metallic glass (METGLAS $\textregistered$ 2605-S2). Samples with well-defined geometry have been made for the experiments at 300 $\un{K}$ and in 1.1 $\un{T}$ and have been measured in the As-received, Field Annealed and Stress Relieved states. The data show that all three samples are spatially correlated non-collinear ferromagnets. A new method of analysis has been applied to show that the non-collinear components of the moments are correlated over several neighbour spacings, $\approx 50\%$ of the range of the atomic correlations, and that, while annealing treatments do not have a profound effect on the correlations, the non-collinear components are larger in the annealed samples.

75.50.Kj - Amorphous and quasicrystalline magnetic materials.
75.50.Bb - $\chem{Fe}$ and its alloys.
25.40.Dn - Elastic neutron scattering.

© EDP Sciences 2004