Spectroscopic indications of polaronic carriers in the quasi-one-dimensional conductor (TaSe4)2I

L. Perfetti; H. Berger; A. Reginelli; L. Degiorgi; H. Höchst; J. Voit; G. Margaritondo; M. Grioni

Spectroscopic indications of polaronic carriers in the quasi-one-dimensional conductor (TaSe₄)₂I

L. Perfetti
, H. Berger
, A. Reginelli
, L. Degiorgi
, H. Höchst
, J. Voit
, G. Margaritondo
, M. Grioni

ENAC-IIC-GEL
Laboratorium für Festkörperphysik
ETH Zurich
Synchrotron Radiation Center
University of Bayreuth

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

79 Citations (Scopus)

Abstract

A Fermi surface crossing in the metallic phase based on the identification of the polaronic quasiparticle (QP) dispersion with the leading edge of the spectrum was observed. The underlying quasiparticles consist of vanishing spectral weight and short coherence lengths. The numerical simulations of the polaron models produced complex spectral functions. The results indicated that polarons were simple excitations which might be described in terms of the lowest nonvanishing moments of the weighted eigenstates and their dependence on wave numbers.

Original language	English
Article number	216404
Pages (from-to)	2164041-2164044
Number of pages	4
Journal	Physical Review Letters
Volume	87
Issue number	21
Publication status	Published - 19 Nov 2001
Externally published	Yes

Cite this

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title = "Spectroscopic indications of polaronic carriers in the quasi-one-dimensional conductor (TaSe4)2I",

abstract = "A Fermi surface crossing in the metallic phase based on the identification of the polaronic quasiparticle (QP) dispersion with the leading edge of the spectrum was observed. The underlying quasiparticles consist of vanishing spectral weight and short coherence lengths. The numerical simulations of the polaron models produced complex spectral functions. The results indicated that polarons were simple excitations which might be described in terms of the lowest nonvanishing moments of the weighted eigenstates and their dependence on wave numbers.",

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T1 - Spectroscopic indications of polaronic carriers in the quasi-one-dimensional conductor (TaSe4)2I

AU - Perfetti, L.

AU - Berger, H.

AU - Reginelli, A.

AU - Degiorgi, L.

AU - Höchst, H.

AU - Voit, J.

AU - Margaritondo, G.

AU - Grioni, M.

PY - 2001/11/19

Y1 - 2001/11/19

N2 - A Fermi surface crossing in the metallic phase based on the identification of the polaronic quasiparticle (QP) dispersion with the leading edge of the spectrum was observed. The underlying quasiparticles consist of vanishing spectral weight and short coherence lengths. The numerical simulations of the polaron models produced complex spectral functions. The results indicated that polarons were simple excitations which might be described in terms of the lowest nonvanishing moments of the weighted eigenstates and their dependence on wave numbers.

AB - A Fermi surface crossing in the metallic phase based on the identification of the polaronic quasiparticle (QP) dispersion with the leading edge of the spectrum was observed. The underlying quasiparticles consist of vanishing spectral weight and short coherence lengths. The numerical simulations of the polaron models produced complex spectral functions. The results indicated that polarons were simple excitations which might be described in terms of the lowest nonvanishing moments of the weighted eigenstates and their dependence on wave numbers.

M3 - Article

AN - SCOPUS:0035914846

SN - 0031-9007

VL - 87

SP - 2164041

EP - 2164044

JO - Physical Review Letters

JF - Physical Review Letters

IS - 21

M1 - 216404

ER -

Spectroscopic indications of polaronic carriers in the quasi-one-dimensional conductor (TaSe4)2I

Abstract

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Cite this

Spectroscopic indications of polaronic carriers in the quasi-one-dimensional conductor (TaSe₄)₂I