Jerry Lo, C. Hwang, et al.
IEEE Transactions on Magnetics
New superconducting TlCan-1Ba2CunO2n+3 thin films have been analyzed by the X-ray diffraction and four-point probe techniques. The films consist mainly of a single TlCa2Ba2Cu3O9 phase or a mixture of the TlCa2Ba2O9 and TlCaBa2Cu2O7 phases with the c-axis preferentially oriented perpendicular to the film surface. The TlCa2Ba2Cu3O9 film grown on an asymmetrically cut yttrium-stabilized ZrO2 (YSZ) infstrate has the highest superconducting transition with on-set Tc near 120 K and zero resistance at 116 K. The TlCa2Ba2Cu3O9 film deposited on a SrTiO3 (100) infstrate has a slightly lower transition with zero resistance at 104 K probably because of stacking faults. The film composed of both the TlCa2Ba2Cu3O9 and TlCaBa2Cu2O7 phases and grown on YSZ has a double transition with on-set Tc near 118 K and 107 K, and zero resistance at 102 K. © 1988 The Japan Society of Applied Physics.
Jerry Lo, C. Hwang, et al.
IEEE Transactions on Magnetics
J.H. Kim, K. Char, et al.
Applied Physics Letters
J.P. Nozières, V.S. Speriosu, et al.
Journal of Magnetism and Magnetic Materials
M. Krantz, H. Rosen, et al.
Solid State Communications