LAUSR

Abstract Texture evolution along c-axis has been optimized for Strontium Barium Niobate (SBN) thin films prepared using Pulsed laser Deposition (PLD) technique for two different compositions i.e., S r 0.60 B a 0.40 N b 2 O 6 ( S B N 60 ) , S r 0.75 B a 0.25 N b 2 O 6 (SBN75). At an optimized deposition pressure of 10 mTorr, substrate temperature of 800 °C and laser fluence of 1.0 J c m − 2 , a preferred c-axis oriented (001) SBN60 thin film was obtained on different substrates. The film possesses minimum stress ( − 0.98 × 10 10 d y n e / c m 2 ) , strain (-0.76 × 10 2 ) and maximum texture coefficient ( T 001 ) of about 1.77 along the c-axis. Similarly, a preferred c-axis oriented growth of SBN75 films was obtained at 30 m T o r r pressure with 1.5 J c m − 2 laser fluence and 800 °C substrate temperature with minimum stress ( − 0.99 × 10 10 d y n e / c m 2 ) , strain (-0.77 × 10 2 ) and maximum texture coefficient ( T 001 ) of about 2.59 along the c-axis. Structural and morphological properties of the SBN thin films were studied using X-ray diffraction (XRD), Atomic force Microscopy (AFM) and Scanning electron microscopy (SEM). Root mean square roughness of about 2.07 nm and 2.85 nm was obtained for the SBN60 and SBN75 thin film at optimized deposition conditions.