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Transmission-electron-microscopy study of quasi-epitaxial tungsten-bronze (Sr2.5Ba2.5Nb10O30) thin film on perovskite (SrTO3) single crystal

Authors :
Su, Dong
Infortuna, Anna
Muralt, Paul
Setter, Nava
Cantoni, Marco
Publisher :
Cambridge University Press

Abstract

Strontium barium niobate (Sr2.5Ba2.5Nb10O30) thin films were deposited on (001) SrTiO3 single-crystalline substrates by pulsed laser deposition. The growth nature was investigated by transmission electron microscopy (TEM). Selected-area electron diffraction and high-resolution transmission electron microscopy revealed the existence of six types of grains. These grains grew on the substrate in a partially epitaxial fashion. Geometrical models were built, which were confirmed by TEM observations. Based on the TEM results and geometrical analysis, a crystallographic model was developed. The strain nature resulting from the growth columns is discussed in this report

Details

Database :
OpenAIRE
Accession number :
edsair.dedup.wf.001..e92fcbf578c7ceefaad303c0f2284591