Band features and strong correlations in 1D Peierls systems

M. Grioni; H. Berger; L. Perfetti; S. Mitrovic; A. Reginelli; H. Hoechst

Band features and strong correlations in 1D Peierls systems

M. Grioni
, H. Berger
, L. Perfetti
, S. Mitrovic
, A. Reginelli
, H. Hoechst

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

Abstract

High-resolution angle-resolved (ARPES) photoemission in the quasi-one dimensional (1D) Peierls systems (TaSe₄)₂I and K_0.3MoO₃ reveals spectral features with clear 1D character. Their dispersion and polarization dependence is consistent with open Fermi surfaces and with the symmetry properties of the lattice. However the measured spectral lineshapes are unusual in various respects, as shown also by a comparison with the quasiparticle spectra of a 'good' metal. A consistent description of the normal metallic phase and of the low-temperature insulating phases is possible within a polaronic scenario, where the carriers are strongly renormalized by the interaction with the lattice and the spectrum is largely incoherent. The quasiparticle signatures are hidden at the spectral leading edge.

Original language	English
Pages (from-to)	Pr9/33-Pr9/38
Journal	Journal De Physique. IV : JP
Volume	12
Issue number	9
Publication status	Published - 1 Nov 2002
Externally published	Yes
Event	International Workshop on Electronic Crystals - ECRYS 2002 - Saint Flour, France Duration: 2 Sept 2002 → 7 Sept 2002

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title = "Band features and strong correlations in 1D Peierls systems",

abstract = "High-resolution angle-resolved (ARPES) photoemission in the quasi-one dimensional (1D) Peierls systems (TaSe4)2I and K0.3MoO3 reveals spectral features with clear 1D character. Their dispersion and polarization dependence is consistent with open Fermi surfaces and with the symmetry properties of the lattice. However the measured spectral lineshapes are unusual in various respects, as shown also by a comparison with the quasiparticle spectra of a 'good' metal. A consistent description of the normal metallic phase and of the low-temperature insulating phases is possible within a polaronic scenario, where the carriers are strongly renormalized by the interaction with the lattice and the spectrum is largely incoherent. The quasiparticle signatures are hidden at the spectral leading edge.",

author = "M. Grioni and H. Berger and L. Perfetti and S. Mitrovic and A. Reginelli and H. Hoechst",

year = "2002",

month = nov,

day = "1",

language = "English",

volume = "12",

pages = "Pr9/33--Pr9/38",

journal = "Journal De Physique. IV : JP",

issn = "1155-4339",

number = "9",

note = "International Workshop on Electronic Crystals - ECRYS 2002 ; Conference date: 02-09-2002 Through 07-09-2002",

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TY - JOUR

T1 - Band features and strong correlations in 1D Peierls systems

AU - Grioni, M.

AU - Berger, H.

AU - Perfetti, L.

AU - Mitrovic, S.

AU - Reginelli, A.

AU - Hoechst, H.

PY - 2002/11/1

Y1 - 2002/11/1

N2 - High-resolution angle-resolved (ARPES) photoemission in the quasi-one dimensional (1D) Peierls systems (TaSe4)2I and K0.3MoO3 reveals spectral features with clear 1D character. Their dispersion and polarization dependence is consistent with open Fermi surfaces and with the symmetry properties of the lattice. However the measured spectral lineshapes are unusual in various respects, as shown also by a comparison with the quasiparticle spectra of a 'good' metal. A consistent description of the normal metallic phase and of the low-temperature insulating phases is possible within a polaronic scenario, where the carriers are strongly renormalized by the interaction with the lattice and the spectrum is largely incoherent. The quasiparticle signatures are hidden at the spectral leading edge.

AB - High-resolution angle-resolved (ARPES) photoemission in the quasi-one dimensional (1D) Peierls systems (TaSe4)2I and K0.3MoO3 reveals spectral features with clear 1D character. Their dispersion and polarization dependence is consistent with open Fermi surfaces and with the symmetry properties of the lattice. However the measured spectral lineshapes are unusual in various respects, as shown also by a comparison with the quasiparticle spectra of a 'good' metal. A consistent description of the normal metallic phase and of the low-temperature insulating phases is possible within a polaronic scenario, where the carriers are strongly renormalized by the interaction with the lattice and the spectrum is largely incoherent. The quasiparticle signatures are hidden at the spectral leading edge.

M3 - Conference article

AN - SCOPUS:18544396015

SN - 1155-4339

VL - 12

SP - Pr9/33-Pr9/38

JO - Journal De Physique. IV : JP

JF - Journal De Physique. IV : JP

IS - 9

T2 - International Workshop on Electronic Crystals - ECRYS 2002

Y2 - 2 September 2002 through 7 September 2002

ER -

Band features and strong correlations in 1D Peierls systems

Abstract

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