High T c Superconducting Bi-(Pb-)Sr-Ca-Cu-O Films Deposited by Pulsed Nd:Yag Laser Ablation
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HIGH Tc SUPERCONDUCTING Bi-(Pb-)Sr-Ca-Cu-O FILMS DEPOSITED BY PULSED Nd:YAG LASER ABLATION
J. LEVOSKA, J. HAGBERG, P. PUSA, A. UUSIMAKI AND S. LEPPAVUORI, Microelectronics and Material Physics Laboratories, University of Oulu, SF-90570 Oulu, Finland
ABSTRACT High Tc superconducting Bi-(Pb-)Sr-Ca-Cu-O thin films were ablated on MgO(100) substrates at room temperature using a Nd:YAG laser at 1064 or 532 nm. The target materials had compositions near Bi 2 -xPbxSr 2 Ca 2 +vCu 3 +zO (x
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