Femtosecond mid-IR pump-probe spectroscopy of photoinduced insulator to metal transition in dimer Mott insulator κ-(BEDT-TTF)2X

Yohei Kawakami; H. Nakaya; Shinichiro Iwai; N. Yoneyama; Takahiko Sasaki; N. Kobayashi

doi:10.1016/j.jpcs.2008.06.025

Femtosecond mid-IR pump-probe spectroscopy of photoinduced insulator to metal transition in dimer Mott insulator κ-(BEDT-TTF)₂X

Yohei Kawakami, H. Nakaya, Shinichiro Iwai, N. Yoneyama, Takahiko Sasaki, N. Kobayashi

研究成果: Article › 査読

1 被引用数 (Scopus)

抄録

Ultrafast dynamics of the photoinduced insulator (I) to metal (M) transition were investigated using femtosecond mid-infrared pump-probe spectroscopy in two-dimensional organic Mott insulators [bis (ethylenedithio)]-tetrathiafulvalene (BEDT-TTF) salts κ-(BEDT-TTF)₂X (κ-(ET)₂X, where X denotes anion). In κ-(d-ET)₂Cu[N(CN)₂]Br, a metallic state was photogenerated using a phonon-mediated mechanism: the effective bandwidth increases through the photoinduced molecular rearrangement. The mechanism differs fundamentally from the previously reported photoinduced filling control in one-dimensional Mott insulators.

本文言語	English
ページ（範囲）	3085-3088
ページ数	4
ジャーナル	Journal of Physics and Chemistry of Solids
巻	69
号	12
DOI	https://doi.org/10.1016/j.jpcs.2008.06.025
出版ステータス	Published - 2008 12月 1

ASJC Scopus subject areas

化学 (全般)
材料科学（全般）
凝縮系物理学

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10.1016/j.jpcs.2008.06.025

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title = "Femtosecond mid-IR pump-probe spectroscopy of photoinduced insulator to metal transition in dimer Mott insulator κ-(BEDT-TTF)2X",

abstract = "Ultrafast dynamics of the photoinduced insulator (I) to metal (M) transition were investigated using femtosecond mid-infrared pump-probe spectroscopy in two-dimensional organic Mott insulators [bis (ethylenedithio)]-tetrathiafulvalene (BEDT-TTF) salts κ-(BEDT-TTF)2X (κ-(ET)2X, where X denotes anion). In κ-(d-ET)2Cu[N(CN)2]Br, a metallic state was photogenerated using a phonon-mediated mechanism: the effective bandwidth increases through the photoinduced molecular rearrangement. The mechanism differs fundamentally from the previously reported photoinduced filling control in one-dimensional Mott insulators.",

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author = "Yohei Kawakami and H. Nakaya and Shinichiro Iwai and N. Yoneyama and Takahiko Sasaki and N. Kobayashi",

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AU - Iwai, Shinichiro

AU - Yoneyama, N.

AU - Sasaki, Takahiko

AU - Kobayashi, N.

PY - 2008/12/1

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AB - Ultrafast dynamics of the photoinduced insulator (I) to metal (M) transition were investigated using femtosecond mid-infrared pump-probe spectroscopy in two-dimensional organic Mott insulators [bis (ethylenedithio)]-tetrathiafulvalene (BEDT-TTF) salts κ-(BEDT-TTF)2X (κ-(ET)2X, where X denotes anion). In κ-(d-ET)2Cu[N(CN)2]Br, a metallic state was photogenerated using a phonon-mediated mechanism: the effective bandwidth increases through the photoinduced molecular rearrangement. The mechanism differs fundamentally from the previously reported photoinduced filling control in one-dimensional Mott insulators.

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