Abstract
The structures of BaTiO3thin films and BaTiO3/ YBa2Cu3O7-δbilayer films grown on SrTiO3and LaAlO3substrates, respectively by pulsed laser deposition, have been investigated by X-ray triple-axis diffraction. The orientation, the interface mismatch and strain status, and the in-plane and perpendicular lattice constants of the epilayers have been determined by reciprocal space map analysis. The results show that both the lattice constants and the structural imperfections of the BaTiO3layers are relevant to the oxygen partial pressure. The a⊥/a‖increases while the full width at half maximum (FWHM) of the rocking curves decreases with the decrease in the partial oxygen pressure.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
