Charge order in quasi-one-dimensional organic charge-transfer solids

R. T. Clay; D. K. Campbell; S. Mazumdar

doi:10.1016/S0379-6779(02)00782-8

Charge order in quasi-one-dimensional organic charge-transfer solids

R. T. Clay, D. K. Campbell, S. Mazumdar

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1 Scopus citations

Abstract

We examine two proposed models of the observed charge ordering (CO) in the quasi-1D, 1/4-filled organic charge transfer solids. The models are characterized by the site charge densities ..1010.. and ..1100.. respectively. Using a Peierls-extended Hubbard model to include both electron-electron and electron-phonon interactions, we show that 1) the ..1010..CO can occur only when the nearest-neighbor Coulomb repulsion is sufficiently strong; 2) a spin-Peierls state can coexist with the ..1010..CO; and 3) experimental evidence clearly supports ..1100.. CO in the (TMTSP) and the 1:2 anionic CTS, while in the (TMTTF) salts the nature of the order is not yet clear.

Original language	English (US)
Pages (from-to)	681-682
Number of pages	2
Journal	Synthetic Metals
Volume	135-136
DOIs	https://doi.org/10.1016/S0379-6779(02)00782-8
State	Published - Apr 4 2003

Keywords

Organic conductors based on radical cation and/or anion salts
Organic superconductors

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(02)00782-8

Cite this

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title = "Charge order in quasi-one-dimensional organic charge-transfer solids",

abstract = "We examine two proposed models of the observed charge ordering (CO) in the quasi-1D, 1/4-filled organic charge transfer solids. The models are characterized by the site charge densities ..1010.. and ..1100.. respectively. Using a Peierls-extended Hubbard model to include both electron-electron and electron-phonon interactions, we show that 1) the ..1010..CO can occur only when the nearest-neighbor Coulomb repulsion is sufficiently strong; 2) a spin-Peierls state can coexist with the ..1010..CO; and 3) experimental evidence clearly supports ..1100.. CO in the (TMTSP) and the 1:2 anionic CTS, while in the (TMTTF) salts the nature of the order is not yet clear.",

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T1 - Charge order in quasi-one-dimensional organic charge-transfer solids

AU - Clay, R. T.

AU - Campbell, D. K.

AU - Mazumdar, S.

PY - 2003/4/4

Y1 - 2003/4/4

N2 - We examine two proposed models of the observed charge ordering (CO) in the quasi-1D, 1/4-filled organic charge transfer solids. The models are characterized by the site charge densities ..1010.. and ..1100.. respectively. Using a Peierls-extended Hubbard model to include both electron-electron and electron-phonon interactions, we show that 1) the ..1010..CO can occur only when the nearest-neighbor Coulomb repulsion is sufficiently strong; 2) a spin-Peierls state can coexist with the ..1010..CO; and 3) experimental evidence clearly supports ..1100.. CO in the (TMTSP) and the 1:2 anionic CTS, while in the (TMTTF) salts the nature of the order is not yet clear.

AB - We examine two proposed models of the observed charge ordering (CO) in the quasi-1D, 1/4-filled organic charge transfer solids. The models are characterized by the site charge densities ..1010.. and ..1100.. respectively. Using a Peierls-extended Hubbard model to include both electron-electron and electron-phonon interactions, we show that 1) the ..1010..CO can occur only when the nearest-neighbor Coulomb repulsion is sufficiently strong; 2) a spin-Peierls state can coexist with the ..1010..CO; and 3) experimental evidence clearly supports ..1100.. CO in the (TMTSP) and the 1:2 anionic CTS, while in the (TMTTF) salts the nature of the order is not yet clear.

KW - Organic conductors based on radical cation and/or anion salts

KW - Organic superconductors

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U2 - 10.1016/S0379-6779(02)00782-8

DO - 10.1016/S0379-6779(02)00782-8

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VL - 135-136

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EP - 682

JO - Synthetic Metals

JF - Synthetic Metals

SN - 0379-6779

ER -

Charge order in quasi-one-dimensional organic charge-transfer solids

Abstract

Keywords

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