Abstract
The fabrication of high-quality thin films of high-temperature superconductors (HTS) of the type and (Bi-2212) by pulsed laser deposition (PLD) is discussed. The surface morphology, lattice parameters, electrical properties, transition temperature and the deposition rate of PLD films depend strongly on the laser fluence and spot size, the type and pressure of the ambient atmosphere, etc. The strong non-equilibrium conditions in PLD allow new metastable compounds to be synthesized. Films with a step-like morphology have been fabricated on off c-axis oriented [001] and MgO substrates. Such films permit us to investigate the strongly anisotropic properties of HTS that are not available as single crystals. Among these properties are the electrical conductivity and its enhancement under large-area illumination, the Seebeck effect and the thermopower.
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