Competition between quantum fluctuations and antiferroelectric order in Ru-doped Sr(0.8)Ca(0.2)Ti(1-x)Ru(x)O(3)

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	Competition between quantum fluctuations and antiferroelectric order in Ru-doped Sr(0.8)Ca(0.2)Ti(1-x)Ru(x)O(3)
	T. Wei; Y. Y. Guo; Y. J. Guo; S. J. Luo; K. F. Wang; J. M. Liu; P. W. Wang; D. P. Yu
	2009
发表期刊	Journal of Physics-Condensed Matter
ISSN	0953-8984
卷号	21 期号:37
摘要	The competition between quantum fluctuations and the antiferroelectric state in Sr(0.8)Ca(0.2)Ti(1-x)Ru(x)O(3) is investigated by measuring the low-temperature dielectric permittivity and by Raman spectroscopy. We demonstrate the significant impact of quantum fluctuations on the stability of the antiferroelectric polar order. It is revealed that the structural phase transitions can be modified by the quantum fluctuations, enhancing the stability of the high-symmetry phase and suppressing the antiferroelectric transitions. More importantly, a quantum antiferroelectric state, exhibiting similar behavior as the quantum ferroelectric state in terms of dielectric response, is identified. In addition, the effect of quantum fluctuations on the increasing permittivity at low temperature is also discussed.
部门归属	[wei, t.; guo, y. y.; guo, y. j.; luo, s. j.; wang, k. f.; liu, j-m] nanjing univ, nanjing natl lab microstruct, nanjing 210093, peoples r china. [liu, j-m] s china normal univ, sch phys, guangzhou 510006, guangdong, peoples r china. [liu, j-m] chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china. [wang, p. w.; yu, d. p.] peking univ, electron microscopy lab, beijing 100871, peoples r china.;liu, jm (reprint author), nanjing univ, nanjing natl lab microstruct, nanjing 210093, peoples r china;liujm@nju.edu.cn
关键词	Structural Phase-transitions Nonlinear Elastic Behavior Ca1-xsrxtio3 Perovskite Srtio3 Crystals Susceptibility Pressure Diagram Field Model
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/32417
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	T. Wei,Y. Y. Guo,Y. J. Guo,et al. Competition between quantum fluctuations and antiferroelectric order in Ru-doped Sr(0.8)Ca(0.2)Ti(1-x)Ru(x)O(3)[J]. Journal of Physics-Condensed Matter,2009,21(37).
APA	T. Wei.,Y. Y. Guo.,Y. J. Guo.,S. J. Luo.,K. F. Wang.,...&D. P. Yu.(2009).Competition between quantum fluctuations and antiferroelectric order in Ru-doped Sr(0.8)Ca(0.2)Ti(1-x)Ru(x)O(3).Journal of Physics-Condensed Matter,21(37).
MLA	T. Wei,et al."Competition between quantum fluctuations and antiferroelectric order in Ru-doped Sr(0.8)Ca(0.2)Ti(1-x)Ru(x)O(3)".Journal of Physics-Condensed Matter 21.37(2009).