Theoretical investigations of the EPR parameters for PbTiO3 : Cr3+ bulks and nanopowders
文献类型：期刊论文
| 作者 | S. Y. Wu ; X. Y. Gao ; H. N. Dong |
| 刊名 | Materials Letters
 |
| 出版日期 | 2006 |
| 卷号 | 60期号:11页码:1319-1322 |
| 关键词 | defects electron paramagnetic resonance crystal fields Cr3+ PbTiO3 atomic screening constants phase-transition ferroelectric pbtio3 superposition model single-crystals scf functions size nanocrystals resonance cr3+ |
| ISSN号 | 0167-577X |
| 中文摘要 | The EPR parameters zero-field splitting D, g factors g(ll) and g(-L) for the four centers (C1-C4) in PbTiO3:Cr3+ bulks and nanopowders are theoretically investigated from the perturbation formulas of the EPR parameters for a 3d(3) ion in tetragonally distorted octahedra. Based on the studies, the impurity displacements Delta Z' away from the center of the octahedron are obtained by analyzing the experimental EPR data. The results of the calculated D values in this work are compared with those based oil the superposition model analyses in the previous works. The sign and magnitude of D and the impurity displacements in these centers are discussed. (c) 2005 Elsevier B.V. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/34577]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | S. Y. Wu,X. Y. Gao,H. N. Dong. Theoretical investigations of the EPR parameters for PbTiO3 : Cr3+ bulks and nanopowders[J]. Materials Letters,2006,60(11):1319-1322. |
| APA | S. Y. Wu,X. Y. Gao,&H. N. Dong.(2006).Theoretical investigations of the EPR parameters for PbTiO3 : Cr3+ bulks and nanopowders.Materials Letters,60(11),1319-1322. |
| MLA | S. Y. Wu,et al."Theoretical investigations of the EPR parameters for PbTiO3 : Cr3+ bulks and nanopowders".Materials Letters 60.11(2006):1319-1322. |
入库方式： OAI收割
来源：金属研究所
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