Magnetovolume instabilities in the pressure dependence of the K-edge circular dichroism of Fe3C Invar particles

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dc.creatorDuman, E.
dc.creatorAcet, M.
dc.creatorWassermann, E. F.
dc.creatorItie, J. P.
dc.creatorBaudelet, F.
dc.creatorMathon, O.
dc.creatorPascarelli, S.
dc.date2004-10-06
dc.date.accessioned2026-07-07T03:01:19Z
dc.date.available2026-07-07T03:01:19Z
dc.descriptionThe p-electrons of carbon in the interstitial compound Fe3C hybridize with the Fe d-band and enhance the valence electron concentration of Fe from 8 to 8.67. At this concentration, substitutional 3d transition metals and alloys exhibit strong moment-volume coupling phenomena and associated magnetovolume instabilities, otherwise known as the Invar effect. For this reason, Fe3C is also expected to incorporate a strong magnetovolume instability, and therefore, we examine the pressure dependence of the of the K edge x-ray magnetic circular dichroism in Fe3C at ambient temperature and pressures up to 20 GPa. We and clear evidence for a high-moment to low-moment transition at about 10 GPa.
dc.description4 pages and 3 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0410156
dc.identifierhttp://arxiv.org/abs/cond-mat/0410156
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/25019
dc.subjectMaterials Science
dc.titleMagnetovolume instabilities in the pressure dependence of the K-edge circular dichroism of Fe3C Invar particles
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