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Electronic properti...
Electronic properties and magnetism of iron at the Earth's inner core conditions
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- Pourovskii, L. V. (författare)
- Ecole Polytech, France
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- Miyake, T. (författare)
- AIST, Japan
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- Simak, Sergey (författare)
- Linköpings universitet,Teoretisk Fysik,Tekniska högskolan
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- Ruban, Andrei V. (författare)
- KTH,Tillämpad materialfysik,Royal Institute Technology, Sweden
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- Dubrovinsky, L. (författare)
- University of Bayreuth, Germany
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- Abrikosov, Igor (författare)
- Linköpings universitet,Teoretisk Fysik,Tekniska högskolan
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(creator_code:org_t)
- American Physical Society, 2013
- 2013
- Engelska.
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Ingår i: Physical Review B. Condensed Matter and Materials Physics. - : American Physical Society. - 1098-0121 .- 1550-235X. ; 87:11, s. 115130-
- Relaterad länk:
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https://liu.diva-por... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- We employ state-of-the-art ab initio simulations within the dynamical mean-field theory to study three likely phases of iron (hcp, fcc, and bcc) at the Earth's core conditions. We demonstrate that the correction to the electronic free energy due to correlations can be significant for the relative stability of the phases. The strongest effect is observed in bcc Fe, which shows a non-Fermi-liquid behavior, and where a Curie-Weiss behavior of the uniform susceptibility hints at a local magnetic moment still existing at 5800 K and 300 GPa. We predict that all three structures have sufficiently high magnetic susceptibility to stabilize the geodynamo.
Ämnesord
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Nyckelord
- Centered-Cubic Iron
- Transition
- Density
- Alloy
- Field
- Fe
- TECHNOLOGY
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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