Study of the magnetic penetration depth in RbOs_2O_6

Abstract

Measurements of the magnetic field penetration depth λin the pyrochlore superconductor RbOs_2O_6 (T_c\simeq6.3 K) were carried out by means of the muon-spin-rotation (\muSR) technique. At low temperatures λ^{-2}(T) saturates and becomes constant below T\simeq 0.2T_c, in agreement with what is expected for weak-coupled s-wave BCS superconductors. The value of λat T=0 was found to be in the range of 250 nm to 300 nm. \muSR and equilibrium magnetization measurements both reveal that at low temperatures $\lambda$ is almost (at the level of 10%) independent of the applied magnetic field. This result suggests that the superconducting energy gap in RbOs_2O_6 is isotropic.

arXiv comment8 pages, 9 figures

References in corpus (20)

• Superconductivity at 1 K in Cd2Re2O7
• New Pyrochlore Oxide Superconductor RbOs2O6
• Superconductivity in the Correlated Pyrochlore Cd_2Re_2O_7
• New beta-Pyrochlore Oxide Superconductor CsOs2O6
• Correlation Effects and Structural Dynamics in the $\beta$-Pyrochlore Superconductor KOs${}_2$O${}_6$
• Muon-spin-relaxation study of the magnetic penetration depth in MgB2
• Superconductivity in Geometrically Frustrated Pyrochlore RbOs2O6
• Specific Heat of the beta-Pyrochlore Oxide Superconductors CsOs2O6 and RbOs2O6
• Superconducting properties of the pyrochlore oxide Cd2Re2O7
• Pressure effects on the transition temperature and the magnetic field penetration depth in the pyrochlore superconductor RbOs_2O_6
• Possible Anisotropic Order Parameter in Pyrochlore Superconductor KOs${}_2$O${}_6$ Probed by Muon Spin Rotation
• Electronic structure properties and BCS superconductivity in beta-pyrochlore oxides: KOs_2O_6
• Field-induced quasiparticle excitations in novel type II superconductors
• Quasiparticle Excitations outside the Vortex Cores in MgB${}_2$ Probed by Muon Spin Rotation
• Synthesis of superconducting pyrochlore RbOs2O6
• Evidence for s-wave superconductivity in the new beta-pyrochlore oxide RbOs2O6
• Anisotropy and internal field distribution of MgB2 in the mixed state at low temperatures
• Temperature Dependence of the Magnetic Penetration Depth in the Vortex State of the Pyrochlore Superconductor, Cd2Re2O7
• Intrinsic thermodynamic properties of the pyrochlore superconductor RbOs2O6 extracted by condensation energy analysis
• Evidence for charged critical behavior in the pyrochlore superconductor RbOs2O6

Cited by in corpus (28)

• Evidence for complex order parameter in La_{1.83}Sr_{0.17}CuO_4
• Extremely strong-coupling superconductivity and anomalous lattice properties in the beta-pyrochlore oxide KOs2O6
• Rattling-Induced Superconductiviy in the Beta-Pyrochlore Oxides AOs2O6
• Universal observation of multiple order parameters in cuprate superconductors
• Chemical trends of superconducting properties in pyrochlore oxides
• Muon-spin rotation measurements of the penetration depth of the Mo_3Sb_7 superconductor
• Muon-spin-rotation measurements of the penetration depth in Li_2Pd_3B
• A low-background piston-cylinder type hybrid high pressure cell for muon-spin rotation/relaxation experiments
• SrPt${}_3$P: two-band single-gap superconductor
• Neutron Scattering Study of the Localized Mode in the beta-Pyrochlore Superconductors AOs2O6
• Time-reversal symmetry breaking and multigap superconductivity in the noncentrosymmetric superconductor La${}_7$Ni${}_3$
• In-plane magnetic penetration depth of superconducting CaKFe${}_4$As${}_4$
• Muon Spin Relaxation Studies of Superconductivity in a Crystalline Array of Weakly Coupled Metal Nanoparticles
• On the interpretation of muon-spin-rotation experiments in the mixed state of type-II superconductors
• In-plane magnetic penetration depth in Sr${}_2$RuO${}_4$: muon-spin rotation/relaxation study
• Anisotropy induced vortex lattice rearrangement in CaKFe${}_4$As${}_4$
• A second phase transition and superconductivity in the beta-pyrochlore oxide KOs2O6
• Coherency of the superconducting state: the muon spin rotation and ARPES studies of (BiPb)_2(SrLa)_2CuO_{6+δ}
• Muon spin rotation measurements of the superfluid density in fresh and aged superconducting PuCoGa${}_5$
• Unconventional pressure dependence of the superfluid density in the nodeless topological superconductor $\alpha$-PdBi${}_2$
• Muon spin rotation study of the magnetic penetration depth in the intercalated graphite superconductor CaC6
• Structural and Superconducting Properties of RbOs2O6 Single Crystals
• Correlation between the transition temperature and the superfluid density in BCS superconductor NbB_2+x
• Large and homogeneous mass enhancement in the rattling-induced superconductor KOs${}_2$O${}_6$
• Comment on ``Muon-spin rotation studies of the superconducting properties of Mo_3Sb_7'', Phys.Rev.B 78, 172505 (2008)
• Magnetic field induced 3D to 1D crossover in type II superconductors
• Pressure-Induced Enhancement of Superfluid Density in Transition Metal Dichalcogenides with and without Charge Density Wave
• Tailoring the normal and superconducting state properties of ternary scandium tellurides, Sc${}_{6}M$Te${}_2$ ($M=$ Fe, Ru and Ir) through chemical substitution