Weakly incoherent magnetotransport in layered metals

Abstract

We investigate the conductivity in layered metals in magnetic field in the weakly incoherent limit, when the interlayer transfer integral is smaller than the Landau level broadening due to the impurity potential, but the interlayer electron tunnelling conserves the intralayer momentum. It is shown that the impurity potential has much stronger effect in this regime, than in the quasi-2D metals in the coherent limit. The weakly incoherent regime has several new qualitative features, not found in the previous theoretical approaches. The background interlayer magnetoresistance in this regime monotonically grows with increasing of magnetic field perpendicular to the conducting layers. The effective electron mean free time is considerably shorter than in the coherent regime and decreases with magnetic field. This enhances the role of higher harmonics in the angular magnetoresistance oscillations and increases the Dingle temperature, which damps the magnetic quantum oscillations.

10 pages, 5 figures

References in corpus (6)

• Anomalous c-axis transport in layered metals
• Indications of coherence-incoherence crossover in layered transport
• Boson-assisted tunneling in layered metals
• On the effect of far impurities on the density of states of two-dimensional electron gas in a strong magnetic field
• The Shubnikov-de Haas effect in multiband quasi-two dimensional metals
• Combination quantum oscillations in canonical single-band Fermi liquids

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• Bilayer splitting versus Fermi-surface warping as an origin of slow oscillations of in-plane magnetoresistance in rare-earth tritellurides
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• Slow oscillations of in-plane magnetoresistance in strongly anisotropic quasi-two-dimensional rare-earth tritellurides
• False spin zeros in the angular dependence of magnetic quantum oscillation in quasi-two-dimensional metals
• Magnetic quantum oscillations in the charge-density-wave state of the organic metals $\alpha$-(BEDT-TTF)${}_2$MHg(SCN)${}_4$ with M = K and Tl
• Fermi surface properties of the bifunctional organic metal $\kappa$-(BETS)${}_2$Mn[N(CN)${}_2$]${}_3$ near the metal--insulator transition
• Exponential suppression of interlayer conductivity in very anisotropic quasi-two-dimensional compounds in high magnetic field
• Slow in-plane magnetoresistance oscillations in multiband quasi-two-dimensional metals