Parametric study of in situ growth of NdCeCuO thin films by laser ablation

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Parametric study of in situ growth of NdCeCuO thin films by laser ablation Wen-Tai Lin and Guo-Ju Chen Department of Materials Science and Engineering, National Cheng Kung University, Tainan, Taiwan 700, Republic of China (Received 24 October 1994; accepted 6 July 1995

The stability fields of the NdCeCuO (NCCO) films and the Ceo.jNdo.s01,75 (CNO) phase grown by laser ablation from the stoichiometric targets, Ndl,8jCeo.15C~04-~, are demonstrated, respectively. The superconducting NCCO films were grown in a specific field below and close to the CuO/Cu20 transition line, i.e., at 700-725°C in 20-50 mTorr, without vacuum annealing. On postdeposition cooling in lower oxygen pressures (

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