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Renormalized phonon spectrum in quasi-onedimensional organic crystals of tetrathiotetraceneiodide

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dc.contributor.author ANDRONIC, Silvia
dc.contributor.author BALMUŞ, Ion
dc.contributor.author CASIAN, Anatolie
dc.date.accessioned 2019-02-07T10:35:53Z
dc.date.available 2019-02-07T10:35:53Z
dc.date.issued 2018
dc.identifier.citation ANDRONIC, Silvia, BALMUŞ, Ion, CASIAN, Anatolie. Renormalized phonon spectrum in quasi-onedimensional organic crystals of tetrathiotetraceneiodide. In: Conferința Tehnico-Științifică a Colaboratorilor, Doctoranzilor și Studenților, Universitatea Tehnică a Moldovei, 16-18 noiembrie, 2017. Chișinău, 2018, vol. 1, pp. 21-22. ISBN 978-9975-45-543-5. ISBN 978-9975-45-544-2 (Vol.1). en_US
dc.identifier.isbn 978-9975-45-543-5
dc.identifier.uri http://repository.utm.md/handle/5014/168
dc.description.abstract The metal-insulator transition in quasi-one-dimensional organic crystals of tetrathiotetraceneiodide, TTT2I3, is studied in the 2D approximation. In the frame of the crystal model two the most important hole-phonon interaction mechanisms are considered. One is similar to that of deformation potential and the other is of polaron type. The scattering on defects is also considered and it is crucial for the explanation of the transition. The renormalized phonon spectrum is calculated in the random phase approximation for different temperatures applying the method of Green functions. We show that the transition is of Peierls type. The effect of lattice distortion on the dispersion of renormalized acoustic phonons is analyzed. en_US
dc.language.iso en en_US
dc.publisher Tehnica UTM 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 Metal-insulator transition en_US
dc.subject Peierls transition
dc.subject renormalized phonon spectrum
dc.subject TTT2I3
dc.subject interchain interaction
dc.title Renormalized phonon spectrum in quasi-onedimensional organic crystals of tetrathiotetraceneiodide en_US
dc.type Article en_US


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