Microstructure and microanalysis of BaNb0.2Ti0.8O3 thin film
作者： M Zhang , XL Ma , DX Li , SJ Xie , RPH Chang
DOI: 10.1016/J.MATCHEMPHYS.2008.06.033
关键词: Thin film 、 Microstructure 、 Materials science 、 Chemical vapor deposition 、 Transmission electron microscopy 、 Tetragonal crystal system 、 Perovskite (structure) 、 Molecular beam epitaxy 、 Substrate (electronics) 、 Crystallography
摘要: Perovskite-based BaNb(0.2)Ti(0.8)O(3) (BNTO) thin film, grown by computer-controlled laser molecular beam epitaxy on SrTiO(3) (001) substrate, was investigated means of high-resolution electron microscopic (HREM) imaging, high-angle annular dark-field (HAADF) and X-ray energy dispersive spectrometric (XEDS) line-scanning in a transmission microscope. The microstructure the film is clarified terms various domains due to tetragonal characteristics. Compositional fluctuation observed domain boundaries. misfit strain element diffusivity during growth together with inherent characteristics are discussed as possible mechanism for formation distribution domains. (C) 2008 Elsevier B.V. All rights reserved.
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imr.ac.cn参考文章(21)
R. von Helmolt, J. Wecker, B. Holzapfel, L. Schultz, K. Samwer, Giant negative magnetoresistance in perovskitelike La2/3Ba1/3MnOx ferromagnetic films. Physical Review Letters. ,vol. 71, pp. 2331- 2333 ,(1993) , 10.1103/PHYSREVLETT.71.2331
Guo Hai-Zhong, Liu Li-Feng, Lu Hui-Bin, Fei Yi-Yan, Xiang Wen-Feng, Zhou Yue-Liang, Chen Zheng-Hao, Structure, Electrical, and Optical Properties of Nb-doped BaTiO3 Thin Films Grown by Laser Molecular Beam Epitaxy Chinese Physics Letters. ,vol. 21, pp. 396- 399 ,(2004) , 10.1088/0256-307X/21/2/051
J. G. Bednorz, K. A. M�ller, Possible high Tc superconductivity in the Ba-La-Cu-O system European Physical Journal B. ,vol. 64, pp. 189- 193 ,(1986) , 10.1007/BF01303701
R. A. Rao, D. Lavric, T. K. Nath, C. B. Eom, L. Wu, F. Tsui, THREE-DIMENSIONAL STRAIN STATES AND CRYSTALLOGRAPHIC DOMAIN STRUCTURES OF EPITAXIAL COLOSSAL MAGNETORESISTIVE LA0.8CA0.2MNO3 THIN FILMS Applied Physics Letters. ,vol. 73, pp. 3294- 3296 ,(1998) , 10.1063/1.122749
C. Kwon, M.C. Robson, K.-C. Kim, J.Y. Gu, S.E. Lofland, S.M. Bhagat, Z. Trajanovic, M. Rajeswari, T. Venkatesan, A.R. Kratz, R.D. Gomez, R. Ramesh, Stress-induced effects in epitaxial (La0.7Sr0.3)MnO3 films Journal of Magnetism and Magnetic Materials. ,vol. 172, pp. 229- 236 ,(1997) , 10.1016/S0304-8853(97)00058-9
A. Urushibara, Y. Moritomo, T. Arima, A. Asamitsu, G. Kido, Y. Tokura, Insulator-metal transition and giant magnetoresistance in La 1-x Sr x MnO 3 Physical Review B. ,vol. 51, pp. 14103- 14109 ,(1995) , 10.1103/PHYSREVB.51.14103
C. W. CHU, P. H. HOR, R. L. MENG, L. GAO, Z. J. HUANG, Superconductivity at 52.5 K in the Lanthanum-Barium-Copper-Oxide System Science. ,vol. 235, pp. 567- 569 ,(1987) , 10.1126/SCIENCE.235.4788.567
J. Aarts, S. Freisem, R. Hendrikx, H. W. Zandbergen, Disorder effects in epitaxial thin films of (La,Ca)MnO3 Applied Physics Letters. ,vol. 72, pp. 2975- 2977 ,(1998) , 10.1063/1.121512
O. I. Lebedev, G. Van Tendeloo, A. M. Abakumov, S. Amelinckx, B. Leibold, H. U. Habermeier, A study of the domain structure of epitaxial La1-xCaxMnO3 films by high-resolution transmission electron microscopy Philosophical Magazine. ,vol. 79, pp. 1461- 1478 ,(1999) , 10.1080/01418619908210372
Ronald E. Cohen, Origin of ferroelectricity in perovskite oxides Nature. ,vol. 358, pp. 136- 138 ,(1992) , 10.1038/358136A0