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Short-range order a...
Short-range order and Fe clustering in Mg1-xFexO under high pressure
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Kantor, I (författare)
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Dubrovinsky, L (författare)
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McCammon, C (författare)
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Steinle-Neumann, G (författare)
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Kantor, A (författare)
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- Skorodumova, Natalia V. (författare)
- Uppsala universitet,Institutionen för fysik och astronomi,Condensed Matter Theory Grp
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Pascarelli, S (författare)
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Aquilanti, G (författare)
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(creator_code:org_t)
- 2009
- 2009
- Engelska.
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Ingår i: Physical Review B. Condensed Matter and Materials Physics. - 1098-0121 .- 1550-235X. ; 80:1, s. 014204-
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- By combining high-pressure and high-temperature Moumlssbauer spectroscopic studies of (Mg,Fe)O with results of ab initio simulations, several important properties of this material were established. Under high pressure (Mg,Fe)O shows changes in the short-range order with the tendency to form iron clusters. These changes were found to be irreversible, implying sluggish kinetics of these processes at ambient conditions. The pressure-induced spin crossover is interpreted here as a gradual noncooperative transition. The onset and width of spin crossover depends, therefore, not only on pressure, temperature, and composition, but also on short-range order in the FeO-MgO solid solution.
Ämnesord
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Nyckelord
- ab initio calculations
- antiferromagnetic materials
- high-pressure effects
- high-temperature effects
- iron
- iron compounds
- magnesium compounds
- metal clusters
- Mossbauer effect
- short-range order
- solid solutions
- Physics
- Fysik
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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