Low-temperature switching fatigue behavior of ferroelectric SrBi2Ta2O9 thin films

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	Low-temperature switching fatigue behavior of ferroelectric SrBi2Ta2O9 thin films
	G. L. Yuan; J. M. Liu; S. T. Zhang; D. Wu; Y. P. Wang; Z. G. Liu; H. L. W. Chan; C. L. Choy
	2004
发表期刊	Applied Physics Letters
ISSN	0003-6951
卷号	84 期号:6 页码:954-956
摘要	The ferroelectric hysteresis and fatigue behavior over a wide temperature range from 290 to 50 K for SrBi2Ta2O9 thin films with Pt electrodes on silicon substrates, prepared by metalorganic decomposition (MOD) and pulsed-laser deposition (PLD), are investigated. It is found that given a fixed electrical field amplitude, the coercivity of all films increases with decreasing temperature T. The saturated hysteresis loop easily obtained for the MOD-prepared thin films has its remnant polarization enhanced with decreasing T, but the PLD-prepared samples exhibit minor loops whose remnant polarization decays with decreasing T. While the films prepared by MOD exhibit improved fatigue resistance at low T, significant fatigue effect at low T is observed for the films prepared by PLD. Although we cannot rule out the effect of strain, the experimental results can be explained by competition between pinning and depinning of domain walls, which are dependent of temperature and defect charges. (C) 2004 American Institute of Physics.
部门归属	nanjing univ, solid state microstruct lab, nanjing 210093, peoples r china. chinese acad sci, int ctr mat phys, shenyang, peoples r china. hong kong polytech univ, dept appl phys, kowloon, hong kong, peoples r china.;liu, jm (reprint author), nanjing univ, solid state microstruct lab, nanjing 210093, peoples r china;liujm@nju.edu.cn
关键词	Polarization Fatigue Capacitors Stress
URL	查看原文
WOS记录号	WOS:000188763800040
引用统计	被引频次：30[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/321006/35697
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	G. L. Yuan,J. M. Liu,S. T. Zhang,et al. Low-temperature switching fatigue behavior of ferroelectric SrBi2Ta2O9 thin films[J]. Applied Physics Letters,2004,84(6):954-956.
APA	G. L. Yuan.,J. M. Liu.,S. T. Zhang.,D. Wu.,Y. P. Wang.,...&C. L. Choy.(2004).Low-temperature switching fatigue behavior of ferroelectric SrBi2Ta2O9 thin films.Applied Physics Letters,84(6),954-956.
MLA	G. L. Yuan,et al."Low-temperature switching fatigue behavior of ferroelectric SrBi2Ta2O9 thin films".Applied Physics Letters 84.6(2004):954-956.