Superlattice structural transition in the organic superconductor χ-(BEDT-TTF)2Cu[N(CN)2]Br

Yoshio Nogami; Jean Paul Pouget; Hiroshi Ito; Takehiko Ishiguro; Gunzi Saito

doi:10.1016/0038-1098(94)90387-5

Superlattice structural transition in the organic superconductor χ-(BEDT-TTF)₂Cu[N(CN)₂]Br

Yoshio Nogami, Jean Paul Pouget, Hiroshi Ito, Takehiko Ishiguro, Gunzi Saito

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

52 Citations (Scopus)

Abstract

By the X-ray "monochromatic" Laue photographic method, we observe the formation below 200 K of superlattice reflections in χ-(BEDT-TTF)₂Cu[N(CN)₂]Br which exhibits the highest superconducting critical temperature at ambient pressure (T_c ∼ 11.6 K) among the organic superconductors. This displacive structural transition doubles the lattice parameter along c. We discuss the driving force of this instability and the consequences of this structural transition on the electronic and lattice properties of this salt.

Original language	English
Pages (from-to)	113-116
Number of pages	4
Journal	Solid State Communications
Volume	89
Issue number	2
DOIs	https://doi.org/10.1016/0038-1098(94)90387-5
Publication status	Published - Jan 1994
Externally published	Yes

ASJC Scopus subject areas

Chemistry(all)
Condensed Matter Physics
Materials Chemistry

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@article{acc84a5420294681a6d3274657dc7992,

title = "Superlattice structural transition in the organic superconductor χ-(BEDT-TTF)2Cu[N(CN)2]Br",

abstract = "By the X-ray {"}monochromatic{"} Laue photographic method, we observe the formation below 200 K of superlattice reflections in χ-(BEDT-TTF)2Cu[N(CN)2]Br which exhibits the highest superconducting critical temperature at ambient pressure (Tc ∼ 11.6 K) among the organic superconductors. This displacive structural transition doubles the lattice parameter along c. We discuss the driving force of this instability and the consequences of this structural transition on the electronic and lattice properties of this salt.",

author = "Yoshio Nogami and Pouget, {Jean Paul} and Hiroshi Ito and Takehiko Ishiguro and Gunzi Saito",

note = "Funding Information: Acknowledgement--D. Petermann is thanked for his help with the use of the computer driven scanner. This work was supported in part by a grant for International Joint Research Project from NEDO (New Energy and Industrial Technology Development Organization), Japan, and by a grant from the Murata Science Foundation.",

year = "1994",

month = jan,

doi = "10.1016/0038-1098(94)90387-5",

language = "English",

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journal = "Solid State Communications",

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T1 - Superlattice structural transition in the organic superconductor χ-(BEDT-TTF)2Cu[N(CN)2]Br

AU - Nogami, Yoshio

AU - Pouget, Jean Paul

AU - Ito, Hiroshi

AU - Ishiguro, Takehiko

AU - Saito, Gunzi

N1 - Funding Information: Acknowledgement--D. Petermann is thanked for his help with the use of the computer driven scanner. This work was supported in part by a grant for International Joint Research Project from NEDO (New Energy and Industrial Technology Development Organization), Japan, and by a grant from the Murata Science Foundation.

PY - 1994/1

Y1 - 1994/1

N2 - By the X-ray "monochromatic" Laue photographic method, we observe the formation below 200 K of superlattice reflections in χ-(BEDT-TTF)2Cu[N(CN)2]Br which exhibits the highest superconducting critical temperature at ambient pressure (Tc ∼ 11.6 K) among the organic superconductors. This displacive structural transition doubles the lattice parameter along c. We discuss the driving force of this instability and the consequences of this structural transition on the electronic and lattice properties of this salt.

AB - By the X-ray "monochromatic" Laue photographic method, we observe the formation below 200 K of superlattice reflections in χ-(BEDT-TTF)2Cu[N(CN)2]Br which exhibits the highest superconducting critical temperature at ambient pressure (Tc ∼ 11.6 K) among the organic superconductors. This displacive structural transition doubles the lattice parameter along c. We discuss the driving force of this instability and the consequences of this structural transition on the electronic and lattice properties of this salt.

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JF - Solid State Communications

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Superlattice structural transition in the organic superconductor χ-(BEDT-TTF)₂Cu[N(CN)₂]Br

Abstract

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