Structure characteristics and valence state study for La1-xKxTiO3 synthesized under high-pressure-temperature

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	Structure characteristics and valence state study for La1-xKxTiO3 synthesized under high-pressure-temperature
	J. P. Miao; Z. Lu; L. P. Li; F. L. Ning; Z. G. Liu; X. Q. Huang; Y. Sui; Z. N. Qian; W. H. Su
	2005
发表期刊	Journal of Alloys and Compounds
ISSN	0925-8388
卷号	387 期号:1-2 页码:287-291
摘要	By using a high-pressure and high-temperature method, perovskite oxides of the type La1-xKxTiO3 (x = 0.30, 0.35, 0.40, 0.45, 0.50) with mixed valence state were synthesized. This new synthesis route has several advantages. XRD analysis shows a cubic cell for the samples. XPS of the surface and EPR measurements indicate that the Ti ions have a mixed valence of 3+ and 4+ and that A-cation vacancies exist in the samples. As x increases, the amount of Ti3+ ions and A-cation vacancies decreases. The valence state of the Ti ions can be altered by changing both pressure and temperature. (C) 2004 Elsevier B.V. All rights reserved.
部门归属	harbin inst technol, ctr condensed matter sci & technol, harbin 150001, peoples r china. jilin univ, grp rare earth solid state phys, changchun 130023, peoples r china. jilin univ, dept phys, changchun 130023, peoples r china. acad sinica, int ctr mat phys, shenyang 110015, peoples r china.;su, wh (reprint author), harbin inst technol, ctr condensed matter sci & technol, box 406, harbin 150001, peoples r china, peoples r china;jpmiao@hit.edu.cn
关键词	High-pressure And -temperature Synthesis Xps Epr Mixed Valence Oxides Electrical-properties Perovskites
URL	查看原文
WOS记录号	WOS:000226277400056
引用统计	被引频次：8[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/34986
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	J. P. Miao,Z. Lu,L. P. Li,et al. Structure characteristics and valence state study for La1-xKxTiO3 synthesized under high-pressure-temperature[J]. Journal of Alloys and Compounds,2005,387(1-2):287-291.
APA	J. P. Miao.,Z. Lu.,L. P. Li.,F. L. Ning.,Z. G. Liu.,...&W. H. Su.(2005).Structure characteristics and valence state study for La1-xKxTiO3 synthesized under high-pressure-temperature.Journal of Alloys and Compounds,387(1-2),287-291.
MLA	J. P. Miao,et al."Structure characteristics and valence state study for La1-xKxTiO3 synthesized under high-pressure-temperature".Journal of Alloys and Compounds 387.1-2(2005):287-291.