New aspects of non-Fermi-liquid behaviour in Q1D metals

Research output: Contribution to journalArticle

Abstract

The second order corrections to magnetic moment, M, magnetic susceptibility, χ, and specific heat, C, due to electron-electron ("e-e") interactions are calculated in a Q1D conductor (TMTSF)2ClO4 in a metallic phase. Strong magnetic oscillations of these thermodynamical quantities are found to exist due to the oscillations of matrix elements of "e-e" interactions in the Peierls channel under the condition of magnetic breakdown. We note that the frequency of the oscillations corresponds to open ("interference") orbits that contradicts Fermi liquid description of quasiparticles. We demonstrate that the relative magnitudes of these forbidden oscillations are anomalously large: δχ/χ0 ∼ 1 - 10, δM/M0 ∼ 10-1, and δC/C0 ∼ 10-2.

Original languageEnglish (US)
Pages (from-to)1615-1616
Number of pages2
JournalSynthetic Metals
Volume85
Issue number1-3
StatePublished - Mar 15 1997
Externally publishedYes

Fingerprint

Fermi liquids
Electron-electron interactions
Magnetic moments
Magnetic susceptibility
Specific heat
Orbits
Metals
oscillations
Liquids
liquids
metals
electron scattering
conductors
magnetic moments
breakdown
specific heat
orbits
magnetic permeability
interference
matrices

Keywords

  • Many-body and quasiparticle theories
  • Organic superconductors

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry
  • Polymers and Plastics

Cite this

New aspects of non-Fermi-liquid behaviour in Q1D metals. / Lebed, Andrei G.

In: Synthetic Metals, Vol. 85, No. 1-3, 15.03.1997, p. 1615-1616.

Research output: Contribution to journalArticle

@article{68dd973d8da44ac89b67fa29de400e92,
title = "New aspects of non-Fermi-liquid behaviour in Q1D metals",
abstract = "The second order corrections to magnetic moment, M, magnetic susceptibility, χ, and specific heat, C, due to electron-electron ({"}e-e{"}) interactions are calculated in a Q1D conductor (TMTSF)2ClO4 in a metallic phase. Strong magnetic oscillations of these thermodynamical quantities are found to exist due to the oscillations of matrix elements of {"}e-e{"} interactions in the Peierls channel under the condition of magnetic breakdown. We note that the frequency of the oscillations corresponds to open ({"}interference{"}) orbits that contradicts Fermi liquid description of quasiparticles. We demonstrate that the relative magnitudes of these forbidden oscillations are anomalously large: δχ/χ0 ∼ 1 - 10, δM/M0 ∼ 10-1, and δC/C0 ∼ 10-2.",
keywords = "Many-body and quasiparticle theories, Organic superconductors",
author = "Lebed, {Andrei G}",
year = "1997",
month = "3",
day = "15",
language = "English (US)",
volume = "85",
pages = "1615--1616",
journal = "Synthetic Metals",
issn = "0379-6779",
publisher = "Elsevier BV",
number = "1-3",

}

TY - JOUR

T1 - New aspects of non-Fermi-liquid behaviour in Q1D metals

AU - Lebed, Andrei G

PY - 1997/3/15

Y1 - 1997/3/15

N2 - The second order corrections to magnetic moment, M, magnetic susceptibility, χ, and specific heat, C, due to electron-electron ("e-e") interactions are calculated in a Q1D conductor (TMTSF)2ClO4 in a metallic phase. Strong magnetic oscillations of these thermodynamical quantities are found to exist due to the oscillations of matrix elements of "e-e" interactions in the Peierls channel under the condition of magnetic breakdown. We note that the frequency of the oscillations corresponds to open ("interference") orbits that contradicts Fermi liquid description of quasiparticles. We demonstrate that the relative magnitudes of these forbidden oscillations are anomalously large: δχ/χ0 ∼ 1 - 10, δM/M0 ∼ 10-1, and δC/C0 ∼ 10-2.

AB - The second order corrections to magnetic moment, M, magnetic susceptibility, χ, and specific heat, C, due to electron-electron ("e-e") interactions are calculated in a Q1D conductor (TMTSF)2ClO4 in a metallic phase. Strong magnetic oscillations of these thermodynamical quantities are found to exist due to the oscillations of matrix elements of "e-e" interactions in the Peierls channel under the condition of magnetic breakdown. We note that the frequency of the oscillations corresponds to open ("interference") orbits that contradicts Fermi liquid description of quasiparticles. We demonstrate that the relative magnitudes of these forbidden oscillations are anomalously large: δχ/χ0 ∼ 1 - 10, δM/M0 ∼ 10-1, and δC/C0 ∼ 10-2.

KW - Many-body and quasiparticle theories

KW - Organic superconductors

UR - http://www.scopus.com/inward/record.url?scp=0031072106&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0031072106&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0031072106

VL - 85

SP - 1615

EP - 1616

JO - Synthetic Metals

JF - Synthetic Metals

SN - 0379-6779

IS - 1-3

ER -