Supramolecular organic conductor θ-(DIETS)2[Au(CN)4]: Unique crystal structure and superconductivity under uniaxial strain (DIETS = diiodo(ethylenedithio)diselenadithiafulvalene)

T. Imakubo; N. Tajima; M. Tamura; R. Kato; Y. Nishio; K. Kajita

doi:10.1016/S0379-6779(02)00383-1

Supramolecular organic conductor θ-(DIETS)₂[Au(CN)₄]: Unique crystal structure and superconductivity under uniaxial strain (DIETS = diiodo(ethylenedithio)diselenadithiafulvalene)

T. Imakubo
, N. Tajima
, M. Tamura
, R. Kato
, Y. Nishio
, K. Kajita

Department of Physics and Astronomy

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

20 Citations (Scopus)

Abstract

The I⋯N type intermolecular interaction is highly useful for the control of the molecular arrangement in organic crystals. One of the strategies for the application of the iodine-based interaction to organic conductors is the utilization of iodine-bonded TTFs and metal-cyanate anions. Among them, the Au(CN)₄ salt of an exotic donor molecule "diiodo(ethylenedithio)diselenadithiafulvalene" (DIETS) crystallizes in a so-called θ-type molecular packing of the conducting layer tailored by the I⋯N type donor⋯anion interaction. In contrast to the common θ-salts of BEDT-TTF, the temperature of the metal-insulator transition was lowered under hydrostatic pressure. On the other hand, under the uniaxial strain up to 10kbar, we observed an abrupt drop of the resistivity around 8K and the recovery of the resistance in a magnetic field is characteristic of the superconducting state.

Original language	English
Pages (from-to)	181-183
Number of pages	3
Journal	Synthetic Metals
Volume	133-134
DOIs	https://doi.org/10.1016/S0379-6779(02)00383-1
Publication status	Published - 13 Mar 2003
Event	ISCOM 2001 - Rusutsu, Hokkaido, Japan Duration: 10 Sept 2001 → 14 Sept 2001

Keywords

Iodine
Organic conductor
Superconductivity
Uniaxial strain

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10.1016/S0379-6779(02)00383-1

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title = "Supramolecular organic conductor θ-(DIETS)2[Au(CN)4]: Unique crystal structure and superconductivity under uniaxial strain (DIETS = diiodo(ethylenedithio)diselenadithiafulvalene)",

abstract = "The I⋯N type intermolecular interaction is highly useful for the control of the molecular arrangement in organic crystals. One of the strategies for the application of the iodine-based interaction to organic conductors is the utilization of iodine-bonded TTFs and metal-cyanate anions. Among them, the Au(CN)4 salt of an exotic donor molecule {"}diiodo(ethylenedithio)diselenadithiafulvalene{"} (DIETS) crystallizes in a so-called θ-type molecular packing of the conducting layer tailored by the I⋯N type donor⋯anion interaction. In contrast to the common θ-salts of BEDT-TTF, the temperature of the metal-insulator transition was lowered under hydrostatic pressure. On the other hand, under the uniaxial strain up to 10kbar, we observed an abrupt drop of the resistivity around 8K and the recovery of the resistance in a magnetic field is characteristic of the superconducting state.",

keywords = "Iodine, Organic conductor, Superconductivity, Uniaxial strain",

author = "T. Imakubo and N. Tajima and M. Tamura and R. Kato and Y. Nishio and K. Kajita",

note = "Funding Information: This work was partially supported by a Grant-in-Aid for Scientific Research (Nos. 11640575 and 10149103) from the Ministry of Education, Culture, Sports, Science and Technology, Japan, and a Research for the Future project (JSPS-RFTF97P00105) from the Japan Society for the Promotion of Science.; ISCOM 2001 ; Conference date: 10-09-2001 Through 14-09-2001",

year = "2003",

month = mar,

day = "13",

doi = "10.1016/S0379-6779(02)00383-1",

language = "English",

volume = "133-134",

pages = "181--183",

journal = "Synthetic Metals",

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TY - JOUR

T1 - Supramolecular organic conductor θ-(DIETS)2[Au(CN)4]

T2 - ISCOM 2001

AU - Imakubo, T.

AU - Tajima, N.

AU - Tamura, M.

AU - Kato, R.

AU - Nishio, Y.

AU - Kajita, K.

N1 - Funding Information: This work was partially supported by a Grant-in-Aid for Scientific Research (Nos. 11640575 and 10149103) from the Ministry of Education, Culture, Sports, Science and Technology, Japan, and a Research for the Future project (JSPS-RFTF97P00105) from the Japan Society for the Promotion of Science.

PY - 2003/3/13

Y1 - 2003/3/13

N2 - The I⋯N type intermolecular interaction is highly useful for the control of the molecular arrangement in organic crystals. One of the strategies for the application of the iodine-based interaction to organic conductors is the utilization of iodine-bonded TTFs and metal-cyanate anions. Among them, the Au(CN)4 salt of an exotic donor molecule "diiodo(ethylenedithio)diselenadithiafulvalene" (DIETS) crystallizes in a so-called θ-type molecular packing of the conducting layer tailored by the I⋯N type donor⋯anion interaction. In contrast to the common θ-salts of BEDT-TTF, the temperature of the metal-insulator transition was lowered under hydrostatic pressure. On the other hand, under the uniaxial strain up to 10kbar, we observed an abrupt drop of the resistivity around 8K and the recovery of the resistance in a magnetic field is characteristic of the superconducting state.

AB - The I⋯N type intermolecular interaction is highly useful for the control of the molecular arrangement in organic crystals. One of the strategies for the application of the iodine-based interaction to organic conductors is the utilization of iodine-bonded TTFs and metal-cyanate anions. Among them, the Au(CN)4 salt of an exotic donor molecule "diiodo(ethylenedithio)diselenadithiafulvalene" (DIETS) crystallizes in a so-called θ-type molecular packing of the conducting layer tailored by the I⋯N type donor⋯anion interaction. In contrast to the common θ-salts of BEDT-TTF, the temperature of the metal-insulator transition was lowered under hydrostatic pressure. On the other hand, under the uniaxial strain up to 10kbar, we observed an abrupt drop of the resistivity around 8K and the recovery of the resistance in a magnetic field is characteristic of the superconducting state.

KW - Iodine

KW - Organic conductor

KW - Superconductivity

KW - Uniaxial strain

UR - https://www.scopus.com/pages/publications/0037435319

U2 - 10.1016/S0379-6779(02)00383-1

DO - 10.1016/S0379-6779(02)00383-1

M3 - Conference article

AN - SCOPUS:0037435319

SN - 0379-6779

VL - 133-134

SP - 181

EP - 183

JO - Synthetic Metals

JF - Synthetic Metals

Y2 - 10 September 2001 through 14 September 2001

ER -

Supramolecular organic conductor θ-(DIETS)₂[Au(CN)₄]: Unique crystal structure and superconductivity under uniaxial strain (DIETS = diiodo(ethylenedithio)diselenadithiafulvalene)

Abstract

Keywords

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