Comparison on the effect of (La0.5Sr0.5)MnO3 and (La0.5Sr0.5)CoO3 buffer layers on fatigue properties of (Pb0.6Sr0.4)TiO3 thin films prepared by pulsed laser deposition

Abstract

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Ferroelectric and structural instability of (Pb,Ca)TiO3 thin films prepared in an oxygen atmosphere and deposited on LSCO thin films which act as a buffer layer

“…XRD patterns indicate that PCT10 thin films deposited on a platinum-coated silicon substrate and on a LSCO buffer layer possess a polycrystalline nature without preferential orientation and exhibit a single perovskite phase without any impurity phase (see Fig. 2a (2) and (3)) which is consistent with the report by Song et al [23,28] [25].…”

“…Among these oxide buffer layers, pseudocubic perovskite La 1 À x Sr x CoO 3 thin films have been intensively studied and have shown a strong influence as a buffer layer [22][23][24]. Cheng et al [25] reported the effects of La 0.5 Sr 0.5 CoO 3 (LSCO) and La 0.5 Sr 0.5 MnO 3 (LSMO) buffer layers on the polarization switching of Pb 1 À x Sr x TiO 3 /LSMO/Pt-Si and Pb 1 À x Sr x TiO 3 /LSCO/Pt-Si thin films. To our knowledge, there are few reports regarding PCT thin films on platinum-coated silicon substrates with LSCO buffer layers and their structural, microstructural and ferroelectric properties have not been investigated.…”