Different superconducting percolation regimes in the layered organic Mott system $κ$-(BEDT-TTF)$_2$Cu[N(CN)$_2$]Cl -- evidence from fluctuation spectroscopy

Simple item page
dc.creatorMueller, Jens
dc.creatorBrandenburg, Jens
dc.creatorSchlueter, John A.
dc.date2008-11-03
dc.date.accessioned2026-07-07T10:14:56Z
dc.date.available2026-07-07T10:14:56Z
dc.descriptionFluctuation spectroscopy is used to investigate the organic bandwidth-controlled Mott system $κ$-(BEDT-TTF)$_2$Cu[N(CN)$_2$]Cl. We find evidence for percolative-type superconductivity in the spatially inhomogeneous coexistence region of antiferromagnetic insulating and superconducting states which develops under pressure at low temperatures. When the superconducting transition is driven by a magnetic field, percolation seems to be dominated by unstable superconducting clusters upon approaching $T_c (B)$ from above, before a "classical" type of percolation is resumed at low fields, dominated by the fractional change of superconducting clusters. The $1/f$ noise is resolved into Lorentzian spectra in the crossover region where the action of an individual mesoscopic fluctuator is enhanced.
dc.description5 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/0811.0361
dc.identifierhttp://arxiv.org/abs/0811.0361
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/173056
dc.subjectStrongly Correlated Electrons
dc.subjectSuperconductivity
dc.titleDifferent superconducting percolation regimes in the layered organic Mott system $κ$-(BEDT-TTF)$_2$Cu[N(CN)$_2$]Cl -- evidence from fluctuation spectroscopy
dc.typetext

Files

Collections

arXiv