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RESEARCH PRODUCT

Preparation and characterization of (Hg0.7Mo0.3)Sr2(Ca0.7Y0.3)Cu2Ox and (Hg0.9Re0.1)Ba2CaCu2Oy superconducting films by laser ablation

Eva Y. AndreiGerhard JakobH. AdrianZhili XiaoZhili XiaoB. Hensel

subject

SuperconductivityDiffractionLaser ablationMaterials scienceAnnealing (metallurgy)Scanning electron microscopeAnalytical chemistryEnergy Engineering and Power TechnologyCondensed Matter PhysicsMagnetic susceptibilityElectronic Optical and Magnetic MaterialsPulsed laser depositionElectrical resistivity and conductivityElectrical and Electronic Engineering

description

Abstract Oriented (Hg 0.7 Mo 0.3 )Sr 2 (Ca 0.7 Y 0.3 )Cu 2 O x and (Hg 0.9 Re 0.1 )Ba 2 CaCu 2 O y superconducting films were prepared on SrTiO 3 substrates using laser ablation and post-Hg-vapor annealing. Due to the stability of Mo 0.3 Sr 2 (Ca 0.7 Y 0.3 )Cu 2 O x and Re 0.1 Ba 2 CaCu 2 O y in air, no special handling was needed during the grinding, mixing and pressing of the precursor targets. The superconductivity of the films was characterized with the temperature dependence of the ac susceptibility ( χ - T ) and the resistance ( R - T ) while the crystallography was probed with x-ray diffraction (XRD) and scanning electron microscopy (SEM).

https://doi.org/10.1016/s0921-4534(00)01278-8