Electro-optic effect in ferroelectric Na0.5K0.5NbO3 thin films on oxide substrates
2006 (English)In: Integrated Ferroelectrics, ISSN 1058-4587, Vol. 80, no 1, 97-106 p.Article in journal (Refereed) Published
We have deposited Na0.5NbO3 (NKN) films oil single crystal Al2O3(1 (1) under bar 02) and SrTiO3(001) substrates using rf-magnetron sputtering of a stoichiometric, high-density ceramic target. Using x-ray diffraction it was confirmed that NKN grows preferentially c-axis oriented on sapphire substrate and epitaxially oil the perovskite SrTiO3(001) substrate. Electro-optical (EO) properties were measured in visible light through a transverse method. With an applied dc field up to 20 kV/cm, the effective linear EO response was determined to r(eff) = 28 pm/V for NKN/Al2O3 and r(eff) = I I pm/V for NKN/SrTiO3, where a superlinear dependence was observed.
Place, publisher, year, edition, pages
2006. Vol. 80, no 1, 97-106 p.
sodium potassium mobates, ferroelectric films, rf-rnagnetron sputtering, XRD, electro-optic effects, AFM, pulsed-laser deposition, knbo3
Other Materials Engineering
IdentifiersURN: urn:nbn:se:kth:diva-15800DOI: 10.1080/10584580600656569ISI: 000238680700012ScopusID: 2-s2.0-33745751799OAI: oai:DiVA.org:kth-15800DiVA: diva2:333842
QC 20100525, QC 20110929. Conference: 17th International Symposium on Integrated Ferroelectrics .Shanghai, PEOPLES R CHINA. APR 17-20, 2005 2010-08-052010-08-052011-09-29Bibliographically approved