Growth of single-phase PrBa0.7Sr1.3Cu3O7 thin films and the role of lattice strain on the transport properties

Y. G. Zhao, Z. W. Dong, M. Rajeswari, R. P. Sharma, T. Venkatesan
1998 Applied Physics Letters  
Single-phase PrBa 0.7 Sr 1.3 Cu 3 O 7 thin films with the Sr dopant concentration exceeding the solid solubility limit were epitaxially grown on ͑001͒ SrTiO 3 and ͑001͒ LaAlO 3 substrates by pulsed laser deposition ͑PLD͒ method. The resistivity of the doped films grown on LaAlO 3 was significantly lower than that of PrBa 2 Cu 3 O 7 . For most of the films grown on SrTiO 3 , the resistivity was higher than that of PrBa 2 Cu 3 O 7 . The results were explained by considering the Sr-doping effect
more » ... d lattice-mismatch-induced strain effect. This work shows the potential of PLD to grow single-phase films with the dopant concentration exceeding the solid solubility limit.
doi:10.1063/1.120615 fatcat:krwip4jprzen3p4bylm3gk6zyy