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BY-NC-ND 3.0 license Open Access Published by De Gruyter Open Access January 15, 2013

Excitation spectrum of TTF-TCNQ: a finite temperature calculation

  • Željana Lošić EMAIL logo
From the journal Open Physics

Abstract

In this paper we study the excitation spectrum of the organic conductor tetrathiafulvalene-tetracyanoquinodimethane (TTF-TCNQ) using finite temperature calculations. The effect of electronelectron interaction is considered within the random phase approximation (RPA). Our results show the temperature dependent plasmon and dipolar mode corresponding qualitatively to the modes obtained previously using zero temperature formalism assigned to the observed excitations at 10 meV and 0.75 eV. These modes have an essential influence on the energy-loss function. The obtained results are in good qualitative agreement with the optical and EELS data of TTF-TCNQ.

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Published Online: 2013-1-15
Published in Print: 2013-1-1

© 2012 Versita Warsaw

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

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