The optical conductivity for a spin-Peierls ground state of (TMTTF)$_{2}$PF$_{6}$ with tetramer formation

T. Yamaguchi; K. Iwano

doi:10.1007/s10909-019-02162-1

paper

The optical conductivity for a spin-Peierls ground state of (TMTTF) $_{2}$ PF $_{6}$ with tetramer formation

arXiv:1807.01625 · doi:10.1007/s10909-019-02162-1

Abstract

We theoretically investigate the optical conductivity of (TMTTF) $_{2}$ PF $_{6}$ in the spin-Peierls ground state within the framework of the exact diagonalization method at absolute zero temperature ( $T = 0$ ). As an effective model, a 1/4-filled 1D (one-dimensional) extended Hubbard model with tetramerization is employed. Using appropriate parameters of the model which have already been reported, we clarify the electronic photoexcitation energies from the spin-Peierls ground state. Since some experiments indicate the formation of a tetramer in the spin-Peierls ground state of (TMTTF) $_{2}$ PF $_{6}$ , our results are useful to understand the effects of tetramerization on the optical properties of (TMTTF) $_{2}$ PF $_{6}$ .

arXiv comment7 pages, 3 figures, the proceedings of the international symposium on quantum fluids and solids 2018 (QFS 2018)

The optical conductivity for a spin-Peierls ground state of (TMTTF)2​PF6​ with tetramer formation

Abstract

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The optical conductivity for a spin-Peierls ground state of (TMTTF) $_{2}$ PF $_{6}$ with tetramer formation