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has been cited by the following article:

• TITLE: Metal-Insulator Transition of Peierls Type in Quasi-One-Dimensional Crystals of TTT2I3

  AUTHORS: Silvia Andronic, Anatolie Casian

  KEYWORDS: Quasi-One-Dimensional Organic Crystals, TTT2I3, Polarization Operator, Metal-Insulator Transition, Peierls Transition, Interchain Interaction, Renormalized Phonons

  JOURNAL NAME: Advances in Materials Physics and Chemistry, Vol.7 No.5, May 22, 2017

  ABSTRACT: We investigate the metal-insulator transition in quasi-one-dimensional organic crystals of tetrathiotetracene-iodide, TTT2I3, in the 2D model. A crystal physical model is applied which takes into account two the most important hole-phonon interaction mechanisms. 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 phonon polarization operator and the renormalized phonon spectrum are 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.