Multiband d-p model for the description of Sr_{2}RuO_{4}

doi:10.12693/APhysPolA.127.260

Multiband d-p model for the description of Sr_{2}RuO_{4}

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Multiband d-p model for the description of Sr_{2}RuO_{4}

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punktacja MNiSW [2015 A]: 15

title:	Multiband d-p model for the description of Sr_{2}RuO_{4}
author:	Rościszewski Krzysztof , Oleś Andrzej
journal title:	Acta Physica Polonica. A
title of volume:	Proceedings of the European Conference Physics of Magnetism 2014 (PM'14) Poznań, Poland, June 23-27, 2014
volume:	127
issue:	2
date of publication :	2015
pages:	260-262
ISSN:	0587-4246
eISSN:	1898-794X
DOI:	10.12693/APhysPolA.127.260
language:	English
journal language:	English
abstract in English:	We study electronic structure of multiband d-p model describing RuO_{4} layer such as realized in Sr_{2}RuO_{4}. The model takes into account nearest-neighbor anisotropic ruthenium-oxygen and oxygen-oxygen hoppings, intra-atomic Coulomb interaction, Hund's exchange and in addition spin-orbit coupling on ruthenium. The RuO_{4} is universally considered as a pure t_{2g} system (with e_{g} orbitals empty) due to sizable gap between t_{2g} and e_{g} levels. We show that ruthenium e_{g} orbitals are in fact occupied, similarly like showed earlier for CoO_{2} layers.
affiliation:	Wydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut Fizyki im. Mariana Smoluchowskiego
type:	journal article
subtype:	academic paper

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