Abstract
Thin films of (Sr, Ba)Nb2O6 (SBN) have been fabricated using a pulsed laser deposition technique. The c-axis oriented films were obtained on SrTiO3 (100) substrates at temperatures higher than 650° C in an oxygen atmosphere (containing 8% O3) of 3 mTorr. Phi scans on the (221) plane showed that the films have two antiphase domains. The a-axis of SBN is aligned at ±18.4° with respect to the a-axis of SrTiO3. The epitaxial relationship between SBN and SrTiO3 is SBN <100>// SrTiO3 <310>. The lattice mismatch between SBN films and SrTiO3 substrates is less than 1%, which contributes to the exellent crystallinity of SBN thin films. The rocking curves of the (002) peak of SBN films grown at 700° C showed the FWHM of 0.31°.
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