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How to derive tight-binding spd potentials? Application to zirconium


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​Journal of Physics: Condensed Matter / Volume 27, Number 33, août 2015

Type de document > *Article de revue

Mots clés >

Unité de recherche > IRSN/PSN-RES/SEMIA/LPTM

Auteurs > DUFRESNE Alice, RIBEIRO Fabienne, TRÉGLIA Guy

Date de publication > 03/08/2015

Résumé

​We propose here a general methodology to derive tight-binding potentials accounting for spd hybridization in transition metals, dealing simultaneously with electronic structure and energy properties. This methodology is illustrated for zirconium which is largely used for technological applications, in particular in the nuclear industry, and whose modelling is known to be complex and challenging. Such potentials are very promising. Their fits have a clear physical meaning with a limited amount of parameters and their complexity can be adjusted as a function of the problem under consideration.