YBa2Cu3O7-δ Thin Film Growth on Different Substrates by Pulsed Laser Deposition

Authors : M. Tolga YURTCAN, Önder ŞİMŞEK, Özkan BAYRAM, Mehmet ERTUĞRUL

Pages : 1-7

View : 14 | Download : 5

Publication Date : 2017-11-30

Article Type : Research Paper

Abstract :There were a lot of research on YBa 2 Cu 3 O 7-δ insert ignore into journalissuearticles values(YBCO); superconducting materials and this material still draw attention.  In this research, thin films of commonly used superconducting YBCO ceramic material, grown on LaAlO 3 insert ignore into journalissuearticles values(LAO);, MgO and SrTiO 3 insert ignore into journalissuearticles values(STO); substrates as thin films, which have different thermal expansion constants and lattice parameters, by Pulsed Laser Deposition insert ignore into journalissuearticles values(PLD); technique. For all growths, 150 mTorr partial Oxygen pressure, 5 cm substrate-target distance and 800 °C substrate temperature were used. Thin films were characterized for film quality and microstructure with X-Ray Diffraction insert ignore into journalissuearticles values(XRD);, Scanning Electron Microscopy insert ignore into journalissuearticles values(SEM); and Energy Dispersive Spectroscopy insert ignore into journalissuearticles values(EDS); techniques. Analysis of these thin films showed that mainly c oriented insert ignore into journalissuearticles values(00l); YBCO thin films obtained with LAO and STO substrates which are more compatible than MgO substrates for YBCO growth.
Keywords : YBa2Cu3O7 δ, YBCO, LaAlO3, MgO, SrTiO3, Pulsed Laser Deposition, superconductivity, PLD