Photoinduced insulator-to-metal transition dynamics in models for quasi-two-dimensional organic conductors

Kenji Yonemitsu; Yasuhiro Tanaka; Satoshi Miyashita; Nobuya Maeshima

doi:10.1002/pssb.201000567

Photoinduced insulator-to-metal transition dynamics in models for quasi-two-dimensional organic conductors

Kenji Yonemitsu, Yasuhiro Tanaka, Satoshi Miyashita, Nobuya Maeshima

Research output: Contribution to journal › Article › peer-review

Abstract

Photoinduced transition dynamics is studied in extended Peierls-Hubbard models for organic BEDT-TTF salts on anisotropic triangular lattices. For θ- and α-type salts, the lattice distortion pattern in the charge-ordered ground state governs the easiness of the insulator-to-metal transition. For κ-type salts, the energy of photoexcitation in the dimer-Mott phase determines whether the insulator-to-metal transition is controlled by the bandwidth or the band filling.

Original language	English
Pages (from-to)	486-490
Number of pages	5
Journal	Physica Status Solidi (B) Basic Research
Volume	248
Issue number	2
DOIs	https://doi.org/10.1002/pssb.201000567
Publication status	Published - 2011 Feb
Externally published	Yes

Keywords

Charge order
Electron-phonon interaction
Mott insulator
Photoinduced phase transition

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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abstract = "Photoinduced transition dynamics is studied in extended Peierls-Hubbard models for organic BEDT-TTF salts on anisotropic triangular lattices. For θ- and α-type salts, the lattice distortion pattern in the charge-ordered ground state governs the easiness of the insulator-to-metal transition. For κ-type salts, the energy of photoexcitation in the dimer-Mott phase determines whether the insulator-to-metal transition is controlled by the bandwidth or the band filling.",

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author = "Kenji Yonemitsu and Yasuhiro Tanaka and Satoshi Miyashita and Nobuya Maeshima",

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AU - Yonemitsu, Kenji

AU - Tanaka, Yasuhiro

AU - Miyashita, Satoshi

AU - Maeshima, Nobuya

PY - 2011/2

Y1 - 2011/2

N2 - Photoinduced transition dynamics is studied in extended Peierls-Hubbard models for organic BEDT-TTF salts on anisotropic triangular lattices. For θ- and α-type salts, the lattice distortion pattern in the charge-ordered ground state governs the easiness of the insulator-to-metal transition. For κ-type salts, the energy of photoexcitation in the dimer-Mott phase determines whether the insulator-to-metal transition is controlled by the bandwidth or the band filling.

AB - Photoinduced transition dynamics is studied in extended Peierls-Hubbard models for organic BEDT-TTF salts on anisotropic triangular lattices. For θ- and α-type salts, the lattice distortion pattern in the charge-ordered ground state governs the easiness of the insulator-to-metal transition. For κ-type salts, the energy of photoexcitation in the dimer-Mott phase determines whether the insulator-to-metal transition is controlled by the bandwidth or the band filling.

KW - Charge order

KW - Electron-phonon interaction

KW - Mott insulator

KW - Photoinduced phase transition

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ER -

Photoinduced insulator-to-metal transition dynamics in models for quasi-two-dimensional organic conductors

Abstract

Keywords

ASJC Scopus subject areas

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