Field Dependent Coherence Length in the Superclean, High-Kappa Superconductor CeCoIn5

Abstract

Using small-angle neutron scattering, we have studied the flux-line lattice (FLL) in superconducting CeCoIn5. The FLL is found to undergo a first-order symmetry and reorientation transition at ~0.55 T at 50 mK. The FLL form factor in this material is found to be independent of the applied magnetic field, in striking contrast to the exponential decrease usually observed in superconductors. This result is consistent with a strongly field-dependent coherence length in CeCoIn5, in agreement with recent theoretical predictions for superclean, high-kappa superconductors.

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Cited by in corpus (20)

• Superconducting phases of f-electron compounds
• Fulde-Ferrell-Larkin-Ovchinnikov State in Heavy Fermion Superconductors
• Microscopic evidence for field-induced magnetism in CeCoIn${}_5$
• Vortex states in superconductors with strong Pauli-paramagnetic effect
• Muon spin rotation studies of electronic excitations and magnetism in the vortex cores of superconductors
• Vortex State and Field-Angle Resolved Specific Heat Oscillation for H // ab in d-Wave Superconductors
• Observations of Pauli Paramagnetic Effects on the Flux Line Lattice in CeCoIn5
• Role of CuO chains in vortex core structure in YBa2Cu3O{7-delta}
• Different types of the Fulde-Ferrell-Larkin-Ovchinnikov states induced by anisotropy effects
• Effect of field dependent core size on reversible magnetization of high-$\kappa$ superconductors
• Vortex lattice studies in CeCoIn5 with H perpendicular to c
• Structural Transitions in Vortex Systems with Anisotropic Interactions
• Paramagnetic Effects in the Vortex Lattice Field Distribution of Strongly Type-II Superconductors
• Local characterization of a heavy-fermion superconductor via sub-Kelvin magnetic force microscopy
• Renormalizations in unconventional superconducting states of Ce${}_{1-x}$Yb${}_x$CoIn${}_5$
• Josephson effect in $CeCoI{n}_5$ microbridges as seen via quantum interferometry
• Pressure studies of the quantum critical alloy Ce(0.93)Yb(0.07)CoIn5
• Field Dependence of the Superconducting Basal Plane Anisotropy of TmNi2B2C
• Josephson effect in a $CeCoI{n}_5$ microbridge
• Muon Spin Rotation in Heavy Electron Pauli Limited Superconductors