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Anelastic relaxation of oxygen vacancies and high-T<sub>c</sub>superconductivity of YBa<sub>2</sub>Cu<sub>3</sub>O<sub>7- </sub>
31
Citations
3
References
1990
Year
Materials ScienceAnelastic RelaxationSingle-phase Ybco SpecimenHigh-tc SuperconductivityEngineeringSuperconducting MaterialPhysicsOxidation ResistanceHigh-temperature SuperconductivityCondensed Matter PhysicsQuantum MaterialsSuperconductivityApplied PhysicsHigh Tc SuperconductorsSolid-state ChemistryInternal FrictionOrder Diffusion Process
It is suggested that the variation of the internal friction (IF) characteristics of a single-phase YBCO specimen resulting from an increase of oxygen deficiency δ is associated either with an order diffusion process between layers, or with an order/disorder diffusion process in the Cu(2) plane. The experimental results are explained in the light of these oxygen-vacancy migration processes. The essential connections between high-Tc superconductivity, electric behaviour and oxygen-vacancy ordering are discussed.
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