Coherent vs incoherent interlayer transport in layered metals

Abstract

The magnetic-field, temperature, and angular dependence of the interlayer magnetoresistance of two different quasi-two-dimensional (2D) organic superconductors is reported. For $\kappa$-(BEDT-TTF)${}_2$I${}_3$ we find a well-resolved peak in the angle-dependent magnetoresistance at $\Theta =90^{\circ }$ (field parallel to the layers). This clear-cut proof for the coherent nature of the interlayer transport is absent for $\beta$''-(BEDT-TTF)${}_2$SF${}_5$CH${}_2$CF${}_2$SO${}_3$. This and the non-metallic behavior of the magnetoresistance suggest an incoherent quasiparticle motion for the latter 2D metal.

4 pages, 4 figures. Phys. Rev. B, in press

References in corpus (5)

• Detailed Topography of the Fermi Surface of Sr2RuO4
• Comparison of coherent and weakly incoherent transport models for the interlayer magnetoresistance of layered Fermi liquids
• Incoherent interlayer transport and angular-dependent magnetoresistance oscillations in layered metals
• Test for interlayer coherence in a quasi-two-dimensional superconductor
• Field-induced metal-insulator transition in a two-dimensional organic superconductor

Cited by in corpus (17)

• Quantum frustration in organic Mott insulators: from spin liquids to unconventional superconductors
• Quantum Oscillations and Coherent Interlayer Transport in a New Topological Dirac Semimetal Candidate: YbMnSb${}_2$
• The Dependence of the Superconducting Transition Temperature of Organic Molecular Crystals on Intrinsically Non-Magnetic Disorder: a Signature of either Unconventional Superconductivity or Novel Local Magnetic Moment Formation
• Absence of Metal-Insulator-Transition and Coherent Interlayer Transport in oriented graphite in parallel magnetic fields
• Angle-dependent magnetoresistance in the weakly incoherent interlayer transport regime
• Magnetic Quantum Oscillations of the Longitudinal Conductivity ${\sigma }_{zz}$ in Quasi two-dimensional Metals
• Magnetic Field Induced Coherence-Incoherence Crossover in the Interlayer Conductivity of a Layered Organic Metal
• Weakly incoherent magnetotransport in layered metals
• Longitudinal interlayer magnetoresistance in quasi-2D metals
• Magnetic-field-induced dimensional crossover in the organic metal $\alpha$-(BEDT-TTF)${}_2$KHg(SCN)${}_4$
• Persistence to high temperatures of interlayer coherence in an organic superconductor
• Bilayer splitting versus Fermi-surface warping as an origin of slow oscillations of in-plane magnetoresistance in rare-earth tritellurides
• Monotonic growth of interlayer magnetoresistance in strong magnetic field in very anisotropic layered metals
• Spin-zero anomaly in the magnetic quantum oscillations of a two-dimensional metal
• Fermi surface properties of the bifunctional organic metal $\kappa$-(BETS)${}_2$Mn[N(CN)${}_2$]${}_3$ near the metal--insulator transition
• Magic angle effects in the interlayer magnetoresistance of quasi-one-dimensional metals due to interchain incoherence
• Exponential suppression of interlayer conductivity in very anisotropic quasi-two-dimensional compounds in high magnetic field