Biaxially oriented NdBa/sub 2/Cu/sub 3/O/sub 7/ films prepared on {100}<001> textured Ag tapes without any buffer layers

We successfully obtained biaxially oriented NdBa/sub 2/Cu/sub 3/O/sub 7/ superconducting films with the T/sub c/ of 89 K on {100}<001> textured Ag tapes without any buffer layers. The lower substrate temperature seems to be favorable for the better biaxial orientation of the NdBa/sub 2/Cu/sub 3/O/sub 7/ grains; the film deposited at 650/spl deg/C had an excellent biaxial crystal orientation, while on the textured Ag tape heated at 720/spl deg/C, NdBa/sub 2/Cu/sub 3/O/sub 7/ phase grew in two orientations, 45/spl deg/ apart.