Dependence of peierls transition on carrier concentration in organic crystals of TTT2I3 in the 3D approximation

The dependence of the Peierls structural transition on carrier concentration in quasi-one-dimensional (Q1D) organic crystals of TTT2I3 is studied in the 3D approximation. A more complete physical model that considers simultaneously two most important electronphonon interactions is used. The first i...

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Autores principales:	Andronic, Silvia, Casian, Anatolie
Formato:	article
Lenguaje:	EN
Publicado:	D.Ghitu Institute of Electronic Engineering and Nanotechnologies 2018
Materias:	Physics QC1-999 Electronics TK7800-8360
Acceso en línea:	https://doaj.org/article/defac8a966cb427595f8aabd93245f97
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spelling	oai:doaj.org-article:defac8a966cb427595f8aabd93245f972021-11-21T11:56:02ZDependence of peierls transition on carrier concentration in organic crystals of TTT2I3 in the 3D approximation533.9+538.92537-63651810-648Xhttps://doaj.org/article/defac8a966cb427595f8aabd93245f972018-12-01T00:00:00Zhttps://mjps.nanotech.md/archive/2018/article/71370https://doaj.org/toc/1810-648Xhttps://doaj.org/toc/2537-6365The dependence of the Peierls structural transition on carrier concentration in quasi-one-dimensional (Q1D) organic crystals of TTT2I3 is studied in the 3D approximation. A more complete physical model that considers simultaneously two most important electronphonon interactions is used. The first interaction is similar to that of deformation potential, while the second one is of the polaron type. The dynamical interaction of carriers with defects is also taken into account. An analytic expression for the phonon Green function is obtained in the random phase approximation. A renormalized phonon spectrum is determined for different values of dimensionless Fermi momentum kF. In all cases, the Peierls critical temperature is determined.Andronic, SilviaCasian, AnatolieD.Ghitu Institute of Electronic Engineering and NanotechnologiesarticlePhysicsQC1-999ElectronicsTK7800-8360ENMoldavian Journal of the Physical Sciences, Vol 17, Iss 3-4, Pp 132-137 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Physics QC1-999 Electronics TK7800-8360
spellingShingle	Physics QC1-999 Electronics TK7800-8360 Andronic, Silvia Casian, Anatolie Dependence of peierls transition on carrier concentration in organic crystals of TTT2I3 in the 3D approximation
description	The dependence of the Peierls structural transition on carrier concentration in quasi-one-dimensional (Q1D) organic crystals of TTT2I3 is studied in the 3D approximation. A more complete physical model that considers simultaneously two most important electronphonon interactions is used. The first interaction is similar to that of deformation potential, while the second one is of the polaron type. The dynamical interaction of carriers with defects is also taken into account. An analytic expression for the phonon Green function is obtained in the random phase approximation. A renormalized phonon spectrum is determined for different values of dimensionless Fermi momentum kF. In all cases, the Peierls critical temperature is determined.
format	article
author	Andronic, Silvia Casian, Anatolie
author_facet	Andronic, Silvia Casian, Anatolie
author_sort	Andronic, Silvia
title	Dependence of peierls transition on carrier concentration in organic crystals of TTT2I3 in the 3D approximation
title_short	Dependence of peierls transition on carrier concentration in organic crystals of TTT2I3 in the 3D approximation
title_full	Dependence of peierls transition on carrier concentration in organic crystals of TTT2I3 in the 3D approximation
title_fullStr	Dependence of peierls transition on carrier concentration in organic crystals of TTT2I3 in the 3D approximation
title_full_unstemmed	Dependence of peierls transition on carrier concentration in organic crystals of TTT2I3 in the 3D approximation
title_sort	dependence of peierls transition on carrier concentration in organic crystals of ttt2i3 in the 3d approximation
publisher	D.Ghitu Institute of Electronic Engineering and Nanotechnologies
publishDate	2018
url	https://doaj.org/article/defac8a966cb427595f8aabd93245f97
work_keys_str_mv	AT andronicsilvia dependenceofpeierlstransitiononcarrierconcentrationinorganiccrystalsofttt2i3inthe3dapproximation AT casiananatolie dependenceofpeierlstransitiononcarrierconcentrationinorganiccrystalsofttt2i3inthe3dapproximation
_version_	1718419394668789760

Dependence of peierls transition on carrier concentration in organic crystals of TTT2I3 in the 3D approximation

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