期刊
SCRIPTA MATERIALIA
卷 66, 期 7, 页码 463-466出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2011.12.018
关键词
Phase transformation; Stress relaxation; Metal-insulator transition; Thin films; Oxides
类别
资金
- ARO MURI [W911-NF-09-1-0398]
- Focus Center Research Program in the Materials Structures and Devices
We investigate structure and stress relaxation in situ across the metal insulator transition in SmNiO3 thin films. An epitaxial thin film of SmNiO3 grown on LaAlO3 single crystal shows a metal insulator transition at 155 degrees C based on electrical measurements. In situ electron diffraction experiments do not show any noticeable change with temperature. SmNiO3 thin films grown on silicon show a smoothly varying compressive stress across the transition boundary. The experimental observation of a metal insulator transition without sharp stress changes is an encouraging preliminary result towards switching device applications. (C) 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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