Low temperature superstructure and transfer integrals in κ-(BEDT-TTF)2Cu[N(CN)2]X:X = Cl, Br

M. Watanabe; Y. Nogami; K. Oshima; H. Ito; T. Ishiguro; G. Saito

doi:10.1016/S0379-6779(98)00615-8

Low temperature superstructure and transfer integrals in κ-(BEDT-TTF)₂Cu[N(CN)₂]X:X = Cl, Br

M. Watanabe, Y. Nogami, K. Oshima, H. Ito, T. Ishiguro, G. Saito

School of Science

Research output: Contribution to journal › Conference article › peer-review

23 Citations (Scopus)

Abstract

Low temperature crystal structures and band parameters were presented for the deuterized (d) and the hydrogenized (h) κ-(BEDT-TTF)₂Cu[N(CN)₂]Cl and for deuterized κ-(BEDT-TTF)₂Cu[N(CN)₂]Br. An enhanced molecular dimerization was observed for the Cl salts. Theoretical prediction by H. Kino and H. Fukuyama that the molecular dimerization stabilizes the Mott insulating state was confirmed. Below 200 K, X-ray diffuse scattering study revealed formation of two dimensional a × 2c superstructure in the deuterized κ -(BEDT-TTF)₂Cu[N(CN)₂]Br. The structural disorder for the d-Br salt was observed in the superstructure and in the terminal ethylenes.

Original language	English
Pages (from-to)	1909-1910
Number of pages	2
Journal	Synthetic Metals
Volume	103
Issue number	1-3
DOIs	https://doi.org/10.1016/S0379-6779(98)00615-8
Publication status	Published - Jun 24 1999
Event	Proceedings of the 1998 International Conference on Science and Technology of Synthetic Metals (ICSM-98) - Montpellier Duration: Jul 12 1998 → Jul 18 1998

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.1016/S0379-6779(98)00615-8

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title = "Low temperature superstructure and transfer integrals in κ-(BEDT-TTF)2Cu[N(CN)2]X:X = Cl, Br",

abstract = "Low temperature crystal structures and band parameters were presented for the deuterized (d) and the hydrogenized (h) κ-(BEDT-TTF)2Cu[N(CN)2]Cl and for deuterized κ-(BEDT-TTF)2Cu[N(CN)2]Br. An enhanced molecular dimerization was observed for the Cl salts. Theoretical prediction by H. Kino and H. Fukuyama that the molecular dimerization stabilizes the Mott insulating state was confirmed. Below 200 K, X-ray diffuse scattering study revealed formation of two dimensional a × 2c superstructure in the deuterized κ -(BEDT-TTF)2Cu[N(CN)2]Br. The structural disorder for the d-Br salt was observed in the superstructure and in the terminal ethylenes.",

author = "M. Watanabe and Y. Nogami and K. Oshima and H. Ito and T. Ishiguro and G. Saito",

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TY - JOUR

T1 - Low temperature superstructure and transfer integrals in κ-(BEDT-TTF)2Cu[N(CN)2]X:X = Cl, Br

AU - Watanabe, M.

AU - Nogami, Y.

AU - Oshima, K.

AU - Ito, H.

AU - Ishiguro, T.

AU - Saito, G.

PY - 1999/6/24

Y1 - 1999/6/24

N2 - Low temperature crystal structures and band parameters were presented for the deuterized (d) and the hydrogenized (h) κ-(BEDT-TTF)2Cu[N(CN)2]Cl and for deuterized κ-(BEDT-TTF)2Cu[N(CN)2]Br. An enhanced molecular dimerization was observed for the Cl salts. Theoretical prediction by H. Kino and H. Fukuyama that the molecular dimerization stabilizes the Mott insulating state was confirmed. Below 200 K, X-ray diffuse scattering study revealed formation of two dimensional a × 2c superstructure in the deuterized κ -(BEDT-TTF)2Cu[N(CN)2]Br. The structural disorder for the d-Br salt was observed in the superstructure and in the terminal ethylenes.

AB - Low temperature crystal structures and band parameters were presented for the deuterized (d) and the hydrogenized (h) κ-(BEDT-TTF)2Cu[N(CN)2]Cl and for deuterized κ-(BEDT-TTF)2Cu[N(CN)2]Br. An enhanced molecular dimerization was observed for the Cl salts. Theoretical prediction by H. Kino and H. Fukuyama that the molecular dimerization stabilizes the Mott insulating state was confirmed. Below 200 K, X-ray diffuse scattering study revealed formation of two dimensional a × 2c superstructure in the deuterized κ -(BEDT-TTF)2Cu[N(CN)2]Br. The structural disorder for the d-Br salt was observed in the superstructure and in the terminal ethylenes.

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DO - 10.1016/S0379-6779(98)00615-8

M3 - Conference article

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SN - 0379-6779

VL - 103

SP - 1909

EP - 1910

JO - Synthetic Metals

JF - Synthetic Metals

IS - 1-3

T2 - Proceedings of the 1998 International Conference on Science and Technology of Synthetic Metals (ICSM-98)

Y2 - 12 July 1998 through 18 July 1998

ER -

Low temperature superstructure and transfer integrals in κ-(BEDT-TTF)₂Cu[N(CN)₂]X:X = Cl, Br

Abstract

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