Title :
Growth and properties of (KNa)0.1(Sr0.75Ba0.25)0.9Nb2O6 thin films by pulsed laser deposition
Author :
Zhang, Y.L. ; Yang, S.H.
Author_Institution :
State Key Lab. of Optoelectron. Mater. & Technol., Sun Yat-Sen Univ., Guangzhou, China
Abstract :
Epitaxial (KNa)0.1(Sr0.75Ba0.25)0.9Nb2O6 (KNSBN:75) thin films deposited on MgO(100) substrate have been prepared by pulsed laser deposition (PLD). The structural properties of the thin films were studied by X-ray diffraction. X-ray diffraction 2thetas and phi scan indicate single crystalline layers with the (001) orientation perpendicular to the substrate plane. The micro-Raman spectra and optical transmission spectra of the KNSBN:75 films have been obtained. The optical constants (refractive index n and the extinction coefficient k) are determined. It is found that the optical properties of the KNSBN:75 films is almost same as that of KNSBN:75 single bulk crystal.
Keywords :
Raman spectra; X-ray diffraction; barium compounds; crystal orientation; epitaxial layers; extinction coefficients; ferroelectric thin films; optical constants; potassium compounds; pulsed laser deposition; refractive index; sodium compounds; strontium compounds; (001) orientation; (KNa)0.1(Sr0.75Ba0.25)0.9Nb2O6; MgO; X-ray diffraction; epitaxial thin films; extinction coefficient; ferroelectric materials; microRaman spectra; optical constants; optical properties; optical transmission spectra; pulsed laser deposition; refractive index; single crystalline layers; structural properties; Niobium; Optical diffraction; Optical films; Optical refraction; Optical variables control; Pulsed laser deposition; Sputtering; Strontium; Substrates; X-ray diffraction; KNSBN thin films; PLD; Raman spectra;
Conference_Titel :
Applications of Ferroelectrics, 2009. ISAF 2009. 18th IEEE International Symposium on the
Conference_Location :
Xian
Print_ISBN :
978-1-4244-4970-5
Electronic_ISBN :
1099-4734
DOI :
10.1109/ISAF.2009.5307573
