Superconductivity in strongly correlated electronic systems

A microscopic theory of superconducting pairing within the Hubbard model is discussed. A Dyson equation for the matrix thermodynamic Green function in the Nambu representation for Hubbard operators is derived by applying the Mori-type projection technique for the equation of motion method. The self...

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Autor principal:	Plakida, N.
Formato:	article
Lenguaje:	EN
Publicado:	D.Ghitu Institute of Electronic Engineering and Nanotechnologies 2009
Materias:	Physics QC1-999 Electronics TK7800-8360
Acceso en línea:	https://doaj.org/article/e91330b4bf59473c83b8dcaee35534fe
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spelling	oai:doaj.org-article:e91330b4bf59473c83b8dcaee35534fe2021-11-21T12:05:38ZSuperconductivity in strongly correlated electronic systems2537-63651810-648Xhttps://doaj.org/article/e91330b4bf59473c83b8dcaee35534fe2009-02-01T00:00:00Zhttps://mjps.nanotech.md/archive/2009/article/4005https://doaj.org/toc/1810-648Xhttps://doaj.org/toc/2537-6365A microscopic theory of superconducting pairing within the Hubbard model is discussed. A Dyson equation for the matrix thermodynamic Green function in the Nambu representation for Hubbard operators is derived by applying the Mori-type projection technique for the equation of motion method. The self-energy is calculated in the noncrossing approximation for electron scattering on spin and charge fluctuations induced by kinematic interaction for Hubbard operators. It is shown that perconducting pairing in strongly correlated electronic systems is determined by antiferromagnetic exchange caused by interband hopping and spin fluctuations due to hole motion in one subband. Plakida, N.D.Ghitu Institute of Electronic Engineering and NanotechnologiesarticlePhysicsQC1-999ElectronicsTK7800-8360ENMoldavian Journal of the Physical Sciences, Vol 8, Iss 1, Pp 7-16 (2009)
institution	DOAJ
collection	DOAJ
language	EN
topic	Physics QC1-999 Electronics TK7800-8360
spellingShingle	Physics QC1-999 Electronics TK7800-8360 Plakida, N. Superconductivity in strongly correlated electronic systems
description	A microscopic theory of superconducting pairing within the Hubbard model is discussed. A Dyson equation for the matrix thermodynamic Green function in the Nambu representation for Hubbard operators is derived by applying the Mori-type projection technique for the equation of motion method. The self-energy is calculated in the noncrossing approximation for electron scattering on spin and charge fluctuations induced by kinematic interaction for Hubbard operators. It is shown that perconducting pairing in strongly correlated electronic systems is determined by antiferromagnetic exchange caused by interband hopping and spin fluctuations due to hole motion in one subband.
format	article
author	Plakida, N.
author_facet	Plakida, N.
author_sort	Plakida, N.
title	Superconductivity in strongly correlated electronic systems
title_short	Superconductivity in strongly correlated electronic systems
title_full	Superconductivity in strongly correlated electronic systems
title_fullStr	Superconductivity in strongly correlated electronic systems
title_full_unstemmed	Superconductivity in strongly correlated electronic systems
title_sort	superconductivity in strongly correlated electronic systems
publisher	D.Ghitu Institute of Electronic Engineering and Nanotechnologies
publishDate	2009
url	https://doaj.org/article/e91330b4bf59473c83b8dcaee35534fe
work_keys_str_mv	AT plakidan superconductivityinstronglycorrelatedelectronicsystems
_version_	1718419278509637632

Superconductivity in strongly correlated electronic systems

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