Search results for "Type-I superconductor"

showing 2 items of 2 documents

Cooling of a superconductor by quasiparticle tunneling

1999

We have extended the cryogenic cooling method based on tunneling between a superconductor and another metal to the case when both metals are superconducting but when their energy gaps are different; earlier, this method was applied between a superconductor and a normal metal. The electron system of a titanium strip with the superconducting transition temperature Tc2=0.51 K has been cooled from 1.02Tc2 to below 0.7Tc2 by this method, using aluminum as the other superconductor.

SuperconductivityMaterials scienceFlux pinningFlux pumpingPhysics and Astronomy (miscellaneous)Condensed matter physicsCondensed Matter::SuperconductivityType-I superconductorQuasiparticleSuperconducting magnetic energy storageTechnological applications of superconductivityQuantum tunnelling
researchProduct

Strong-coupling effects in the heavy-fermion superconductor UPd2Al3

2000

Abstract Recent results of superconducting tunneling spectroscopy on epitaxial thin films of the antiferromagnetic heavy-fermion superconductor UPd 2 Al 3 are presented. Strong-coupling effects in the tunneling density of states are analyzed within the framework of the anisotropic Eliashberg theory for a pair-coupling mechanism based on the exchange of antiferromagnetic spin excitations. The multi-sheeted Fermi surface of UPd 2 Al 3 is taken into account.

SuperconductivityPhysicsCondensed matter physicsType-I superconductorScanning tunneling spectroscopyFermi surfaceHeavy fermion superconductorCondensed Matter PhysicsElectronic Optical and Magnetic MaterialsCondensed Matter::SuperconductivityDensity of statesAntiferromagnetismCondensed Matter::Strongly Correlated ElectronsElectrical and Electronic EngineeringSpin-½Physica B: Condensed Matter
researchProduct