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Interatomic forces ...
Interatomic forces for transition metals including magnetism
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Ackland, G. J. (författare)
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Hepburn, D. J. (författare)
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- Wallenius, Janne (författare)
- KTH,Reaktorfysik
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(creator_code:org_t)
- 2010
- 2010
- Engelska.
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Ingår i: 139th Annual Meeting & Exhibition - Supplemental Proceedings, Vol 2. - 9780873397520 ; , s. 85-92
- Relaterad länk:
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https://urn.kb.se/re...
Abstract
Ämnesord
Stäng
- We present a formalism for extending the second moment tight-binding model[1], incorporating ferro- and anti-ferromagnetic interaction terms which are needed for the FeCr system. For antiferromagnetic and paramagnetic materials, an explicit additional variable representing the spin is required. In a mean-field approximation this spin can be eliminated. and the potential becomes explicitly temperature dependent. For ferromagnetic interactions, this degree of freedom can be eliminated, and the formalism reduces to the embedded atom method (EAM[2]), and we show the equivalence of existing EAM potentials to "magnetic" Potentials.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering (hsv//eng)
Nyckelord
- Chromium
- Interatomic potential
- Iron
- Magnetism
Publikations- och innehållstyp
- ref (ämneskategori)
- kon (ämneskategori)
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