Electronic structure of the α-(BEDT-TTF)2MHg(XCN)4 (M = T1, K, NH4; X = S, Se) molecular metals: On the 1D vs. 2D character of the charge carriers

Roger Rousseau; Albert Figueras; Enric Canadell

doi:10.1016/S0166-1280(97)00236-4

Electronic structure of the α-(BEDT-TTF)₂MHg(XCN)₄ (M = T1, K, NH₄; X = S, Se) molecular metals: On the 1D vs. 2D character of the charge carriers

Roger Rousseau
, Albert Figueras
, Enric Canadell

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

Abstract

The relationship between the crystal structure and Fermi surface of the α-(BEDT-TTF)₂MHg(XCN)₄ (M = T1, K, NH₄; X = S, Se) molecular metals is discussed. A simple model to explain the origin of the different dimensionality of the carriers, i.e. one-dimensional (1D) holes but two-dimensional (2D) electrons, is presented.

Original language	English
Pages (from-to)	135-143
Number of pages	9
Journal	Journal of Molecular Structure: THEOCHEM
Volume	424
Issue number	1-2
DOIs	https://doi.org/10.1016/S0166-1280(97)00236-4
State	Published - Feb 9 1998
Externally published	Yes

Funding

E.C. thanks L. Salem for patiently showing him the beauty and strength of simple theoretical models when he was a postdoc in his group and for encouragement and discussions later on. We are grateful to M.-L. Doublet, R.P. Shibaeva and E.B. Yagubskii for previous collaborations concerning the correlation between the crystal and electronic structure of the BEDT-TTF CYp hases. R.R. would like to thank the NSER of Canada for a postgraduate research fellowship. This work was partially supportedb y CICYT (project MAT95103%C02-01) and Generalitat de Catalunya (GRQ93-8044).

Keywords

Crystals
Fermi surface
Molecular metals
Organic conductors

Access to Document

10.1016/S0166-1280(97)00236-4

Cite this

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abstract = "The relationship between the crystal structure and Fermi surface of the α-(BEDT-TTF)2MHg(XCN)4 (M = T1, K, NH4; X = S, Se) molecular metals is discussed. A simple model to explain the origin of the different dimensionality of the carriers, i.e. one-dimensional (1D) holes but two-dimensional (2D) electrons, is presented.",

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