Muons as Local Probes of Three-body Correlations in the Mixed State of Type-II Superconductors

Abstract

The vortex glass state formed by magnetic flux lines in a type-II superconductor is shown to possess non-trivial three-body correlations. While such correlations are usually difficult to measure in glassy systems, the magnetic fields associated with the flux vortices allow us to probe these via muon-spin rotation measurements of the local field distribution. We show via numerical simulations and analytic calculations that these observations provide detailed microscopic insight into the local order of the vortex glass and more generally validate a theoretical framework for correlations in glassy systems.

arXiv comment4+ pages, high-quality figures available on request

References in corpus (10)

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Cited by in corpus (12)

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• Search for broken time-reversal symmetry near the surface of YBCO films using Beta-NMR
• Two-component density functional theory for muonic molecules: Inclusion of the electron-positive muon correlation functional
• Anisotropy induced vortex lattice rearrangement in CaKFe${}_4$As${}_4$
• Study of the mixed state of La_{1.83}Sr_{0.17}CuO_{4} by means of muon-spin rotation and magnetization experiments in a low magnetic field
• Phase diagram of randomly pinned vortex matter in layered superconductors: dependence on the details of the point pinning
• Partially-ordered vortex lattices in the high-field, low-temperature mixed state of quasi two-dimensional organic superconductors
• Damping of dHvA oscillations and vortex-lattice disorder in the peak-effect region of strong type-II superconductors
• Doping Dependence of Vortex Regimes in Y${}_{1-x}$Pr${}_x$Ba${}_2$Cu${}_3$O${}_{7-\delta }$ Single Crystals