Evidence for charged critical behavior in the pyrochlore superconductor RbOs2O6
arXiv:cond-mat/0409398 · doi:10.1103/PhysRevLett.94.077002
Abstract
We analyze magnetic penetration depth data of the recently discovered superconducting pyrochlore oxide RbOs2O6. Our results strongly suggest that in RbOs2O6 charged critical fuctuations dominate the temperature dependence of the magnetic penetration depth near Tc. This is in contrast to the mean-field behavior observed in conventional superconductors and the uncharged critical behavior found in nearly optimally doped cuprate superconductors. However, this finding agrees with the theoretical predictions for charged criticality and the charged criticality observed in underdoped YBa2Cu3O6.59.
5 pages, 4 figures
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- Chemical trends of superconducting properties in pyrochlore oxides
- Study of the magnetic penetration depth in RbOs_2O_6
- Frustration in Coupled Rattler System: KOs2O6
- Vortex Origin of Tricritical Point in Ginzburg-Landau Theory
- A general interpolation scheme for thermal fluctuations in superconductors
- A second phase transition and superconductivity in the beta-pyrochlore oxide KOs2O6
- Intrinsic thermodynamic properties of the pyrochlore superconductor RbOs2O6 extracted by condensation energy analysis
- Fixed point structure of the Abelian Higgs model
- Magnetic and charge transport properties of the Na-based Os oxide pyrochlore
- Magnetic field induced 3D to 1D crossover in type II superconductors