Nature · 1987 · 74 citations · 0 references
Natural SciencesElectrical EngineeringMaterials ScienceCeramic MaterialsCeramicsCondensed Matter PhysicsDielectric CeramicsElectrical Properties Of CeramicsSuperconducting MaterialsSuperconducting Thin FilmsHigh-temperature SuperconductivityHigh-temperature SuperconductorsSquid MagnetometersSuperconducting CeramicsSuperconducting Resonators