Investigation of the electric-field effect in EPR spectra of Fe3+ in KTaO3

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	Investigation of the electric-field effect in EPR spectra of Fe3+ in KTaO3
	W. C. Zheng; S. Tang; X. X. Wu
	2005
发表期刊	Zeitschrift Fur Naturforschung Section a-a Journal of Physical Sciences
ISSN	0932-0784
卷号	60 期号:6 页码:429-432
摘要	The displacements of Fe3+ (at the Ta5+ site) along the [001] direction in KTaO3 crystal, caused by the electric field, have been studied by calculating the electric-field-induced zero-field splittings from the microscopic mechanisms and the empirical superposition model. It is found that the Fe3+ displacements obtained by the two methods at the same electric-field strength and temperature are close to each other. These displacements are also close to that estimated from the force-balance equation. It is suggested that the electric-field-induced zero-field splitting can be attributed primarily to the above displacement and the temperature dependence of the electric-field-induced zero-field splitting is mainly due to the change in the dielectric constant of KTaO3 with temperature.
部门归属	sichuan univ, dept mat sci, chengdu 610064, peoples r china. civil aviat flying inst china, dept phys, guanghan 618307, peoples r china. chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china.;zheng, wc (reprint author), sichuan univ, dept mat sci, chengdu 610064, peoples r china;zhengwc1@163.com
关键词	Electron Paramagnetic Resonance Electric-field Effect Crystal-field Theory Fe3++ Ktao3 Covalency Contribution Ions Crystal
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WOS记录号	WOS:000230514400007
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/35283
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	W. C. Zheng,S. Tang,X. X. Wu. Investigation of the electric-field effect in EPR spectra of Fe3+ in KTaO3[J]. Zeitschrift Fur Naturforschung Section a-a Journal of Physical Sciences,2005,60(6):429-432.
APA	W. C. Zheng,S. Tang,&X. X. Wu.(2005).Investigation of the electric-field effect in EPR spectra of Fe3+ in KTaO3.Zeitschrift Fur Naturforschung Section a-a Journal of Physical Sciences,60(6),429-432.
MLA	W. C. Zheng,et al."Investigation of the electric-field effect in EPR spectra of Fe3+ in KTaO3".Zeitschrift Fur Naturforschung Section a-a Journal of Physical Sciences 60.6(2005):429-432.