c-Axis oriented thin Bi2Sr2CaCu2O8+δ-films prepared by flash-evaporation
Physica C. Bd. 204. H. 1/2. 1992 S. 15 - 20
Erscheinungsjahr: 1992
ISBN/ISSN: 0921-4534
Publikationstyp: Zeitschriftenaufsatz
Sprache: Englisch
Doi/URN: 10.1016/0921-4534(92)90567-V
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Inhaltszusammenfassung
Superconducting thin films of Bi2Sr2CaCu2O8 ? were prepared by flash-evaporation. Fine grained powder of the stoichiometry Bi2Sr2.5Ca2Cu2Oy was periodically dropped onto and flash-evaporated by a 1900°C hot tantalum boat and deposited on an unheated 100-SrTiO3-substrate. Post-annealing yielded highly c-axis oriented, single phase films, which showed superconductivity up to 81 K. Resistive transitions and critical current densities were measured in magnetic fields up to 6 T with the field dire...Superconducting thin films of Bi2Sr2CaCu2O8 ? were prepared by flash-evaporation. Fine grained powder of the stoichiometry Bi2Sr2.5Ca2Cu2Oy was periodically dropped onto and flash-evaporated by a 1900°C hot tantalum boat and deposited on an unheated 100-SrTiO3-substrate. Post-annealing yielded highly c-axis oriented, single phase films, which showed superconductivity up to 81 K. Resistive transitions and critical current densities were measured in magnetic fields up to 6 T with the field direction parallel and perpendicular to the c-axis. » weiterlesen» einklappen
Klassifikation
DFG Fachgebiet:
Physik der kondensierten Materie
DDC Sachgruppe:
Physik
