Effect of high pressure on Mossbauer spectra of NiFe2O4 ultrafine particles with different grain sizes
文献类型：期刊论文
| 作者 | Y. G. Ma ; M. Z. Jin ; M. L. Liu ; G. Chen ; Y. Sui ; Y. Tian ; G. J. Zhang ; Y. Q. Jia |
| 刊名 | Materials Chemistry and Physics
 |
| 出版日期 | 2000 |
| 卷号 | 65期号:1页码:79-84 |
| 关键词 | Mossbauer spectrum nickel ferrite ultrafine particles high pressure |
| ISSN号 | 0254-0584 |
| 中文摘要 | The nickel ferrite ultrafine powders with different grain sizes (8, 12, 20, 40 and 80 nm) have been synthesized. Mossbauer spectra of Fe-57 nucleus in the samples composed of the nickel ferrite ultrafine powder before and after the high pressure treatments have been measured. The superparamagnetic relaxation is markedly suppressed by high pressure. The intensity of the sextets in Mossbauer spectra increases with increasing the grain size or pressure. The effect of high pressure on Mossbauer spectra of the samples may involve not only the physical changes, but also the chemical or structural ones in the ultrafine particles during the high pressure treatment, such as the formation of the interfacial region between the ultrafine particles and the rearrangements of the atoms in the surface layers of the ultrafine particles. (C) 2000 Elsevier Science S.A. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/37135]  |
| 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 | Y. G. Ma,M. Z. Jin,M. L. Liu,et al. Effect of high pressure on Mossbauer spectra of NiFe2O4 ultrafine particles with different grain sizes[J]. Materials Chemistry and Physics,2000,65(1):79-84. |
| APA | Y. G. Ma.,M. Z. Jin.,M. L. Liu.,G. Chen.,Y. Sui.,...&Y. Q. Jia.(2000).Effect of high pressure on Mossbauer spectra of NiFe2O4 ultrafine particles with different grain sizes.Materials Chemistry and Physics,65(1),79-84. |
| MLA | Y. G. Ma,et al."Effect of high pressure on Mossbauer spectra of NiFe2O4 ultrafine particles with different grain sizes".Materials Chemistry and Physics 65.1(2000):79-84. |
入库方式： OAI收割
来源：金属研究所
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