Anisotropic zero-resistance onset in organic superconductors

Abstract

We study the coexistence of superconductivity (SC) and density-wave state and reconcile various puzzling experimental data in organic superconductors (TMTSF)${}_2$PF${}_6$ and (TMTSF)${}_2$ClO${}_4$. The anisotropic resistance drop above $T_c$ is qualitatively described by nascent isolated SC islands within a bulk analytical model. However, the observed anisotropic SC onset is explained only when the finite size and flat needle shape of samples is considered. Our results pave a way to estimate the volume fraction and the typical size of SC islands in far from the sample surface, and apply to many inhomogeneous superconductors, including high-$T_c$ cuprate or Fe-based ones.

7 pages with Appendix and 5 figures

References in corpus (33)

• Direct observation of competition between superconductivity and charge density wave order in YBa2Cu3Oy
• Imaging the granular structure of high-Tc superconductivity in underdoped Bi2Sr2CaCu2O8+x
• Electronic crystals: an experimental overview
• Electrical Resistivity Anisotropy from Self-Organized One-Dimensionality in High-Temperature Superconductors
• High Temperature Superconductivity in Iron Pnictides and Chalcogenides
• Inhomogeneity of charge density wave order and quenched disorder in a high Tc superconductor
• Uniaxial strain detwinning of CaFe2As2 and BaFe2As2: optical and transport study
• Momentum-dependent charge correlations in YBa${}_2$Cu${}_3$O${}_{6+\delta }$ superconductors probed by resonant x-ray scattering: Evidence for three competing phases
• Electronic Structure and Superconductivity of FeSe-Related Superconductors
• Using controlled disorder to probe the interplay between charge order and superconductivity in NbSe2
• Inhomogeneous superconductivity and the "pseudogap state of novel superconductors
• Imaging nanoscale Fermi surface variations in an inhomogeneous superconductor
• Synchrotron x-ray scattering study of charge-density-wave order in HgBa${}_2$CuO${}_{4+\delta }$
• Evolution of the resistivity anisotropy in Bi_{2}Sr_{2-x}La_{x}CuO_{6+δ} single crystals for a wide range of hole doping
• Emergence of nanoscale inhomogeneity in the superconducting state of a homogeneously disordered conventional superconductor, NbN
• Coexistence of Superconductivity and Spin Density Wave orderings in the organic superconductor (TMTSF)_2PF_6
• Electronically driven superconductor insulator transition in electrostatically doped La${}_2$CuO${}_{4+\delta }$ thin films
• Local inhomogeneity and filamentary superconductivity in Pr-doped CaFe${}_2$As${}_2$
• Coexistence of Superconductivity and Antiferromagnetism Probed by Simultaneous NMR and Electrical Transport in (TMTSF)2PF6
• Domain walls at the spin density wave endpoint of the organic superconductor (TMTSF)2PF6 under pressure
• Superconductivity in the charge-density-wave state of the organic metal α-(BEDT-TTF)2KHg(SCN)4
• Soliton phase near antiferromagnetic quantum critical point in Q1D conductors
• Doubling of the critical temperature of FeSe observed in point contacts
• Coexistence of Superconductor and Spin-Density Wave in (TMTSF)2ClO4: Spatial Structure of the Two-phase State
• Gossamer bulk high-temperature superconductivity in FeSe
• Properties of superconductivity on the density wave background with small ungapped Fermi surface pockets
• Nature of superconducting state in the new phase in (TMTSF)${}_2$PF${}_6$ under pressure
• Direct visualization of phase separation between superconducting and nematic domains in Co-doped CaFe2As2 close to a first order phase transition
• Crossover from impurity-controlled to granular superconductivity in (TMTSF)2ClO4
• Transport properties and the anisotropy of Ba_{1-x}K_xFe_2As_2 single crystals in normal and superconducting states
• Conductivity of anisotropic inhomogeneous superconductors above critical temperature
• Superconductivity on the density wave background with soliton-wall structure
• Role of Anion Ordering in the Coexistence of Spin-Density-Wave and Superconductivity in (TMTSF)2ClO4

Cited by in corpus (6)

• Functional Nanoscale Phase Separation and Intertwined Order in Quantum Complex Materials
• On the size of superconducting islands on the density-wave background in organic metals
• Evolution of shape and volume fraction of superconducting domains with temperature and anion disorder in (TMTSF)${}_2$ClO${}_4$
• Inhomogeneous superconductivity onset in FeSe studied by transport properties
• First-order phase transition between superconductivity and charge/spin-density wave as the reason of their coexistence in organic metals
• Peculiar effect of sample size in layered superconductors