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RESEARCH PRODUCT

Preparation and properties of Tl2Ba2CaCu2O8 thin films

Donats ErtsLars-gunnar JohanssonHåkan OlinZdravko IvanovTord ClaesonEva Olsson

subject

SuperconductivityMaterials sciencePhysics and Astronomy (miscellaneous)Chemical engineeringAtomic force microscopyElectrical resistivity and conductivityAnnealing (metallurgy)Transition temperatureCritical currentElectric currentThin filmCondensed Matter PhysicsElectronic Optical and Magnetic Materials

description

Anex situ process has been developed to produce thin superconducting Tl2Ba2CaCu2O8 films. The properties of films grown on different substrates using different annealing regimes were studied. Critical temperatures of 103–107 K were measured on films prepared in a broad range of annealing temperatures on SrTiO3, LaAlO3, and Y-ZrO2 substrates. A critical current density,Jc, of 2×106 A/cm2 at 77 K was measured on LaAlO3. Film morphology was studied by SEM, AFM, and STM.

https://doi.org/10.1007/bf00721661