Phonon dispersion above the Peierls structural transition in TTF-TCNQ organic crystals

ANDRONIC, Silvia; CASIAN, Anatolie

dc.contributor.author	ANDRONIC, Silvia
dc.contributor.author	CASIAN, Anatolie
dc.date.accessioned	2020-09-16T22:00:36Z
dc.date.available	2020-09-16T22:00:36Z
dc.date.issued	2016
dc.identifier.citation	ANDRONIC, Silvia, CASIAN, Anatolie. Phonon dispersion above the Peierls structural transition in TTF-TCNQ organic crystals. In: Moldavian Journal of the Physical Sciences. 2016, vol. 15(1-2), pp. 20-26. ISSN 1810-648X.	en_US
dc.identifier.issn	1810-648X
dc.identifier.uri	http://repository.utm.md/handle/5014/9508
dc.description.abstract	The softening of acoustic phonons above the Peierls structural transition in quasi-onedimensional (Q1D) TTF-TCNQ organic crystals is studied. Unlike other papers, a more complete physical model is applied to consider simultaneously two the most important electronphonon interactions. The first is similar to that of deformation potential, and the second one is of polaron type. Analytic expressions for the phonon Green function and for the phonon polarization operator are obtained in the random phase approximation. The effects of interchain interaction on the phonon dispersion and Peierls critical temperature are analyzed.	en_US
dc.language.iso	en	en_US
dc.publisher	Academy of Sciences of Moldova	en_US
dc.rights	Attribution-NonCommercial-NoDerivs 3.0 United States	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/3.0/us/	*
dc.subject	phonon dispersion	en_US
dc.subject	Peierls structural transition	en_US
dc.subject	organic crystals	en_US
dc.subject	electron-phonon interactions	en_US
dc.subject	crystals	en_US
dc.title	Phonon dispersion above the Peierls structural transition in TTF-TCNQ organic crystals	en_US
dc.type	Article	en_US