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Simple Rules for Determining Valencies of f-electron Systems

Petit, Leon, Svane, Axel, Szotek, Zdzislawa, Strange, Paul, Winter, Herman, Temmerman, Walter (2001) Simple Rules for Determining Valencies of f-electron Systems. Journal of Physics: Condensed Matter, 13 (38). pp. 8697-8706. ISSN 0953-8984. (doi:10.1088/0953-8984/13/38/311) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided) (KAR id:4692)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided.
Official URL:
http://dx.doi.org/10.1088/0953-8984/13/38/311

Abstract

The electronic structure of f-electron systems is calculated with the self-interaction-corrected local-spin-density (LSD) approximation. This scheme allows for a splitting of the f-electron manifold into an integral number of localized electrons and self-consistently determined fractional number of band electrons. Therefore, in comparison with the LSD approximation, where all f states are pinned at the Fermi energy, only a maximum of one f band is left at the Fermi energy. We show that this band is partially occupied with occupancy n(f), and the f-electron fluctuations are reduced compared with the LSD approximation. When n(f) exceeds a critical value of approximately 0.6, it becomes energetically more favourable to localize this state, and the number of valence bands is reduced by one.

Item Type: Article
DOI/Identification number: 10.1088/0953-8984/13/38/311
Uncontrolled keywords: Physics of Quantum Materials
Subjects: Q Science > QC Physics
Divisions: Divisions > Division of Natural Sciences > Physics and Astronomy
Depositing User: Paul Strange
Date Deposited: 14 Sep 2008 08:49 UTC
Last Modified: 16 Nov 2021 09:42 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/4692 (The current URI for this page, for reference purposes)

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