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We have prepared Bi 2 Sr 2 CaCu 2 O 8+δ (Bi-2212) thin films by a pulse laser deposition (PLD) method followed by post-annealing. The thin films were grown on MgO substrates at 400-630 o C and 100 mTorr oxygen. They were about 200 nm thick. The crystalline structure of thin films deposited at lower temperature (~470 o C) was amorphous. The...
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