XAS and XMCD studies of amorphous FeCo-based ribbons

Sanjeev Gautam, Shanshank N. Kane, B. G. Park, J. Y. Kim, L. K. Varga, J. H. Song, Keun Hwa Chae

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

This paper reports x-ray absorption spectroscopy (XAS) and x-ray magnetic circular dichroism (XMCD) studies at Fe L3,2 and Co L 3,2-edges to investigate the electronic structure of (Fe 100 - xCox)78Si9Nb3B 9Cu1 (0 < x < 95) alloys. The influence of controlled Co addition on electronic structural and magnetic properties of (Fe100 - xCox)78Si9Nb 3B9Cu1 (x = 0, 20, 40, and 60) alloys has been investigated and it has been observed that Co exists as Co2+/Co 3+, while Fe exists as a mixture of Fe0 (metallic) and Fe2+. The XMCD studies confirm these results and reveal that Co-ions are responsible for the room temperature ferromagnetism (RTFM) in the system, while at Fe L3,2-edge it shows a diamagnetic behavior.

Original languageEnglish
Pages (from-to)2228-2231
Number of pages4
JournalJournal of Non-Crystalline Solids
Volume357
Issue number11-13
DOIs
Publication statusPublished - Jun 1 2011

Keywords

  • Amorphous ribbons
  • FeCo-based alloy
  • X-ray absorption spectroscopy
  • X-ray magnetic circular dichroism

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Materials Chemistry

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    Gautam, S., Kane, S. N., Park, B. G., Kim, J. Y., Varga, L. K., Song, J. H., & Chae, K. H. (2011). XAS and XMCD studies of amorphous FeCo-based ribbons. Journal of Non-Crystalline Solids, 357(11-13), 2228-2231. https://doi.org/10.1016/j.jnoncrysol.2010.11.099