Superconductivity in new organic conductor κ-(BEDSe-TTF)2CuN(CN)2Br

Jun Ichiro Sakata; Hirohiko Sato; Akira Miyazaki; Toshiaki Enoki; Yoshinori Okano; Reizo Kato

doi:10.1016/S0038-1098(98)00368-8

Superconductivity in new organic conductor κ-(BEDSe-TTF)₂CuN(CN)₂Br

Jun Ichiro Sakata, Hirohiko Sato, Akira Miyazaki, Toshiaki Enoki^*, Yoshinori Okano, Reizo Kato

^*Corresponding author for this work

Applied Chemistry

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

29 Scopus citations

Abstract

Superconductivity is discovered in new type of two-dimensional organic metal κ-(BEDSe-TTF)₂CuN(CN)₂Br consisting of BEDT-TTF donor analogue having selenium-substituted six-member outer rings. This salt is isostructural to the corresponding BEDT-TTF salt and shows metallic behavior accompanied with a spin-density-wave transition at T_MI ∼ 25 K. The application of pressure up to 0.15 GPa generates superconducting state at T_c = 7.5 K, which is lower than T_c of the BEDT-TTF salt (T_c = 11.6 K). The lowering of T_c and the modification in the electronic structure are explained in terms of the important contribution of selenium electrons and the concomitant enhancement in donor dimerization.

Original language	English
Pages (from-to)	377-381
Number of pages	5
Journal	Solid State Communications
Volume	108
Issue number	6
DOIs	https://doi.org/10.1016/S0038-1098(98)00368-8
State	Published - 1998/10/02

Keywords

A. organic crystals
A. superconductors
D. electronic band structure
D. electronic transport
D. phase transitions

ASJC Scopus subject areas

General Chemistry
Condensed Matter Physics
Materials Chemistry

Access to Document

10.1016/S0038-1098(98)00368-8

Cite this

@article{19a721a694de4a9fb668c6056491c37b,

title = "Superconductivity in new organic conductor κ-(BEDSe-TTF)2CuN(CN)2Br",

abstract = "Superconductivity is discovered in new type of two-dimensional organic metal κ-(BEDSe-TTF)2CuN(CN)2Br consisting of BEDT-TTF donor analogue having selenium-substituted six-member outer rings. This salt is isostructural to the corresponding BEDT-TTF salt and shows metallic behavior accompanied with a spin-density-wave transition at TMI ∼ 25 K. The application of pressure up to 0.15 GPa generates superconducting state at Tc = 7.5 K, which is lower than Tc of the BEDT-TTF salt (Tc = 11.6 K). The lowering of Tc and the modification in the electronic structure are explained in terms of the important contribution of selenium electrons and the concomitant enhancement in donor dimerization.",

keywords = "A. organic crystals, A. superconductors, D. electronic band structure, D. electronic transport, D. phase transitions",

author = "Sakata, {Jun Ichiro} and Hirohiko Sato and Akira Miyazaki and Toshiaki Enoki and Yoshinori Okano and Reizo Kato",

note = "Funding Information: The present work was supported partly by Grant-in-Aid for Scientific Research on Priority Areas (No. 10149103 “Metal-assembled Complexes”) from Ministry of Education, Science, Sports and Culture, Japan.",

year = "1998",

month = oct,

day = "2",

doi = "10.1016/S0038-1098(98)00368-8",

language = "英語",

volume = "108",

pages = "377--381",

journal = "Solid State Communications",

issn = "0038-1098",

publisher = "Elsevier Ltd.",

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TY - JOUR

T1 - Superconductivity in new organic conductor κ-(BEDSe-TTF)2CuN(CN)2Br

AU - Sakata, Jun Ichiro

AU - Sato, Hirohiko

AU - Miyazaki, Akira

AU - Enoki, Toshiaki

AU - Okano, Yoshinori

AU - Kato, Reizo

N1 - Funding Information: The present work was supported partly by Grant-in-Aid for Scientific Research on Priority Areas (No. 10149103 “Metal-assembled Complexes”) from Ministry of Education, Science, Sports and Culture, Japan.

PY - 1998/10/2

Y1 - 1998/10/2

N2 - Superconductivity is discovered in new type of two-dimensional organic metal κ-(BEDSe-TTF)2CuN(CN)2Br consisting of BEDT-TTF donor analogue having selenium-substituted six-member outer rings. This salt is isostructural to the corresponding BEDT-TTF salt and shows metallic behavior accompanied with a spin-density-wave transition at TMI ∼ 25 K. The application of pressure up to 0.15 GPa generates superconducting state at Tc = 7.5 K, which is lower than Tc of the BEDT-TTF salt (Tc = 11.6 K). The lowering of Tc and the modification in the electronic structure are explained in terms of the important contribution of selenium electrons and the concomitant enhancement in donor dimerization.

AB - Superconductivity is discovered in new type of two-dimensional organic metal κ-(BEDSe-TTF)2CuN(CN)2Br consisting of BEDT-TTF donor analogue having selenium-substituted six-member outer rings. This salt is isostructural to the corresponding BEDT-TTF salt and shows metallic behavior accompanied with a spin-density-wave transition at TMI ∼ 25 K. The application of pressure up to 0.15 GPa generates superconducting state at Tc = 7.5 K, which is lower than Tc of the BEDT-TTF salt (Tc = 11.6 K). The lowering of Tc and the modification in the electronic structure are explained in terms of the important contribution of selenium electrons and the concomitant enhancement in donor dimerization.

KW - A. organic crystals

KW - A. superconductors

KW - D. electronic band structure

KW - D. electronic transport

KW - D. phase transitions

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DO - 10.1016/S0038-1098(98)00368-8

M3 - 学術論文

AN - SCOPUS:0032475716

SN - 0038-1098

VL - 108

SP - 377

EP - 381

JO - Solid State Communications

JF - Solid State Communications

IS - 6

ER -