Correlation versus surface effects in photoemission of quasi-1D organic conductors

R. Claessen; U. Schwingenschlögl; M. Sing; C. S. Jacobsen; M. Dressel

doi:10.1016/S0921-4526(01)01292-3

Correlation versus surface effects in photoemission of quasi-1D organic conductors

R. Claessen^*, U. Schwingenschlögl, M. Sing, C. S. Jacobsen, M. Dressel

^*Corresponding author for this work

Research output: Contribution to journal › Conference article › peer-review

6 Scopus citations

Abstract

The absence of spectral weight at the Fermi level in photoemission spectra of quasi-1D organic conductors has been interpreted as possible evidence for an unusual many-body state. We demonstrate that great care must be exercised to draw this conclusion exclusively on the basis of a pseudogap. A detailed surface characterization of the charge transfer salts (TMTSF)₂PF₆ and TTF-TCNQ shows that signatures of electronic correlations in the valence band spectra are strongly affected by surface effects and may even be completely obscured.

Original language	English (US)
Pages (from-to)	660-662
Number of pages	3
Journal	Physica B: Condensed Matter
Volume	312-313
DOIs	https://doi.org/10.1016/S0921-4526(01)01292-3
State	Published - Mar 2002
Externally published	Yes
Event	International Conference on Strongly Correlated Electrons - Ann Arbor, MI, United States Duration: Aug 6 2002 → Aug 6 2002

Keywords

One-dimensional metals
Organic conductors
Photoemission

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1016/S0921-4526(01)01292-3

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title = "Correlation versus surface effects in photoemission of quasi-1D organic conductors",

abstract = "The absence of spectral weight at the Fermi level in photoemission spectra of quasi-1D organic conductors has been interpreted as possible evidence for an unusual many-body state. We demonstrate that great care must be exercised to draw this conclusion exclusively on the basis of a pseudogap. A detailed surface characterization of the charge transfer salts (TMTSF)2PF6 and TTF-TCNQ shows that signatures of electronic correlations in the valence band spectra are strongly affected by surface effects and may even be completely obscured.",

keywords = "One-dimensional metals, Organic conductors, Photoemission",

author = "R. Claessen and U. Schwingenschl{\"o}gl and M. Sing and Jacobsen, {C. S.} and M. Dressel",

year = "2002",

month = mar,

doi = "10.1016/S0921-4526(01)01292-3",

language = "English (US)",

volume = "312-313",

pages = "660--662",

journal = "Physica B: Condensed Matter",

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note = "International Conference on Strongly Correlated Electrons ; Conference date: 06-08-2002 Through 06-08-2002",

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TY - JOUR

T1 - Correlation versus surface effects in photoemission of quasi-1D organic conductors

AU - Claessen, R.

AU - Schwingenschlögl, U.

AU - Sing, M.

AU - Jacobsen, C. S.

AU - Dressel, M.

PY - 2002/3

Y1 - 2002/3

N2 - The absence of spectral weight at the Fermi level in photoemission spectra of quasi-1D organic conductors has been interpreted as possible evidence for an unusual many-body state. We demonstrate that great care must be exercised to draw this conclusion exclusively on the basis of a pseudogap. A detailed surface characterization of the charge transfer salts (TMTSF)2PF6 and TTF-TCNQ shows that signatures of electronic correlations in the valence band spectra are strongly affected by surface effects and may even be completely obscured.

AB - The absence of spectral weight at the Fermi level in photoemission spectra of quasi-1D organic conductors has been interpreted as possible evidence for an unusual many-body state. We demonstrate that great care must be exercised to draw this conclusion exclusively on the basis of a pseudogap. A detailed surface characterization of the charge transfer salts (TMTSF)2PF6 and TTF-TCNQ shows that signatures of electronic correlations in the valence band spectra are strongly affected by surface effects and may even be completely obscured.

KW - One-dimensional metals

KW - Organic conductors

KW - Photoemission

UR - http://www.scopus.com/inward/record.url?scp=0036503377&partnerID=8YFLogxK

U2 - 10.1016/S0921-4526(01)01292-3

DO - 10.1016/S0921-4526(01)01292-3

M3 - Conference article

AN - SCOPUS:0036503377

SN - 0921-4526

VL - 312-313

SP - 660

EP - 662

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

T2 - International Conference on Strongly Correlated Electrons

Y2 - 6 August 2002 through 6 August 2002

ER -

Correlation versus surface effects in photoemission of quasi-1D organic conductors

Abstract

Keywords

ASJC Scopus subject areas

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