Evidence for polarised boron in Co-B and Fe-B alloys

Author

Xu, Y.B. ; Greig, D. ; Seddon, E.A. ; Cornelius, S. ; Matthew, J.A.D.

Author_Institution

Dept. of Phys. & Astron., Leeds Univ., UK

Volume

35

Issue

5

fYear

1999

fDate

9/1/1999 12:00:00 AM

Firstpage

3427

Lastpage

3429

Abstract

By exploiting the tunability of synchrotron radiation in measurements of spin-resolved photoemission it has proved possible to obtain information on the polarisation of the valence electrons of Co-B and Fe-B amorphous magnetic alloys. Both the spin-integrated and spin-resolved energy distribution curves show a marked dependence on photon energy indicating that the p states of boron hybridise with the d states of the transition metals giving rise to mixed states in the binding energy range 1 to 5 eV. The observed polarisation and spin-resolved densities of states imply that in the above restricted energy range there is a net negative polarisation of the boron states

Keywords

X-ray photoelectron spectra; amorphous magnetic materials; binding energy; boron alloys; cobalt alloys; iron alloys; valence bands; 1 to 5 eV; Co-B; Co-B alloys; Fe-B; Fe-B alloys; d states; mixed states; net negative polarisation; photon energy; spin-integrated energy distribution curves; spin-resolved energy distribution curves; spin-resolved photoemission; synchrotron radiation; transition metals; tunability; valence electrons; Amorphous magnetic materials; Amorphous materials; Boron alloys; Cobalt alloys; Electrons; Iron alloys; Photoelectricity; Polarization; Saturation magnetization; Synchrotron radiation;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.800546

Filename

800546