XMCD at Fe L2,3 edges, Fe and S K edges on Fe7S8

XMCD at Fe L2,3 edges, Fe and S K edges on Fe7S8

Pyrrhotite (Fe7S8) is a natural iron sulphide that can participate in rock magnetisation. Its electronic structure is not yet surely described. X-ray magnetic circular dichroism (XMCD) at Fe L2,3 edges on Fe7S8, coupled with multiplet calculations, shows that iron is present only as Fe2+ in this mag...

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Veröffentlicht in:Phys Chem Minerals 2007-03, Vol.34 (2), p.113-120
Hauptverfasser: Letard, Isabelle, Sainctavit, Philippe, Deudon, Catherine
Format: Artikel
Sprache:eng
Schlagworte:
Condensed Matter
Dichroism
Electronic structure
Iron
Iron sulfides
Materials Science
Physics
Pyrrhotite
Sulfides
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Zusammenfassung:Pyrrhotite (Fe7S8) is a natural iron sulphide that can participate in rock magnetisation. Its electronic structure is not yet surely described. X-ray magnetic circular dichroism (XMCD) at Fe L2,3 edges on Fe7S8, coupled with multiplet calculations, shows that iron is present only as Fe2+ in this magnetic iron sulphide. It reveals a strong magnetic orbital moment. XMCD at Fe and S K edges shows the quite strong polarization of both Fe and S in Fe7S8.
ISSN:0342-1791
1432-2021
DOI:10.1007/s00269-006-0132-8