Superconducting properties of Nd-Ba-Cu-O thick films prepared by liquid phase epitaxial growth

C -axis oriented Nd1+xBa2-xCu3Oy thick films were grown by the liquid phase epitaxy (LPE) technique onto MgO (100) single crystal substrates in Ar gas atmosphere containing 0.5 at,% O-2, The superconducting transition temperature T-c was very broad, when the film thickness was 10 mu m but became very sharp when it was increased to 100 mu m, The T-c value for the 100 mu m thick film could be increased up to 92 K by postannealing at 300 degrees C for 336 hrs in O-2 atmosphere. Moreover, the peak effect, which is characterized by an increase in magnetization with increasing magnetic Field up to 15000 G at 50 K, was observed in the 100 mu m thick film, A substantial improvement in the superconducting properties when the film thickness is increased to 100 mu m, can be attributed to the stable persistence of the steady state growth mode instead of the transient mode responsible for the first 10 mu m thick deposition.