Superconducting and charge ordering phases of two-dimensional organic conductors

R. Kondo; M. Higa; S. Kagoshima

doi:10.1007/s10909-006-9161-4

Superconducting and charge ordering phases of two-dimensional organic conductors

R. Kondo, M. Higa, S. Kagoshima

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

1 Citation (Scopus)

Abstract

In order to investigate relationships between superconducting phase and charge ordered one, the uniaxial strain method is applied to the superconducting salt α-(BEDT-TTF) ₂NH ₄ Hg(SCN) ₄ and the organic conductor α-(BEDT-TTF) ₂CsCd(SCN) ₄. Both salts preserve metallic states under a-axial strain and show insulating behaviours under c-axial strain. These results suggest that i) c-axial strain controls the electronic properties of the α-type salts, and ii) the insulating state in the vicinity of the superconducting phase of α-(BEDT-TTF) ₂NH ₄Hg(SCN) ₄ is a charge ordered phase, as expected from the comparison in the lattice parameters with the charge ordered salt θ-(BEDT-TTF) ₂ RbZn(SCN) ₄.

Original language	English
Pages (from-to)	539-542
Number of pages	4
Journal	Journal of Low Temperature Physics
Volume	142
Issue number	3-4
DOIs	https://doi.org/10.1007/s10909-006-9161-4
Publication status	Published - Feb 2006
Externally published	Yes

Keywords

74.25 Fy
74.70kn

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Materials Science(all)
Condensed Matter Physics

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10.1007/s10909-006-9161-4

Cite this

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title = "Superconducting and charge ordering phases of two-dimensional organic conductors",

abstract = "In order to investigate relationships between superconducting phase and charge ordered one, the uniaxial strain method is applied to the superconducting salt α-(BEDT-TTF) 2NH 4 Hg(SCN) 4 and the organic conductor α-(BEDT-TTF) 2CsCd(SCN) 4. Both salts preserve metallic states under a-axial strain and show insulating behaviours under c-axial strain. These results suggest that i) c-axial strain controls the electronic properties of the α-type salts, and ii) the insulating state in the vicinity of the superconducting phase of α-(BEDT-TTF) 2NH 4Hg(SCN) 4 is a charge ordered phase, as expected from the comparison in the lattice parameters with the charge ordered salt θ-(BEDT-TTF) 2 RbZn(SCN) 4.",

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T1 - Superconducting and charge ordering phases of two-dimensional organic conductors

AU - Kondo, R.

AU - Higa, M.

AU - Kagoshima, S.

PY - 2006/2

Y1 - 2006/2

N2 - In order to investigate relationships between superconducting phase and charge ordered one, the uniaxial strain method is applied to the superconducting salt α-(BEDT-TTF) 2NH 4 Hg(SCN) 4 and the organic conductor α-(BEDT-TTF) 2CsCd(SCN) 4. Both salts preserve metallic states under a-axial strain and show insulating behaviours under c-axial strain. These results suggest that i) c-axial strain controls the electronic properties of the α-type salts, and ii) the insulating state in the vicinity of the superconducting phase of α-(BEDT-TTF) 2NH 4Hg(SCN) 4 is a charge ordered phase, as expected from the comparison in the lattice parameters with the charge ordered salt θ-(BEDT-TTF) 2 RbZn(SCN) 4.

AB - In order to investigate relationships between superconducting phase and charge ordered one, the uniaxial strain method is applied to the superconducting salt α-(BEDT-TTF) 2NH 4 Hg(SCN) 4 and the organic conductor α-(BEDT-TTF) 2CsCd(SCN) 4. Both salts preserve metallic states under a-axial strain and show insulating behaviours under c-axial strain. These results suggest that i) c-axial strain controls the electronic properties of the α-type salts, and ii) the insulating state in the vicinity of the superconducting phase of α-(BEDT-TTF) 2NH 4Hg(SCN) 4 is a charge ordered phase, as expected from the comparison in the lattice parameters with the charge ordered salt θ-(BEDT-TTF) 2 RbZn(SCN) 4.

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Superconducting and charge ordering phases of two-dimensional organic conductors

Abstract

Keywords

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