Synthesis and magnetic properties of Pr0.57Ca0.43MnO3 nanoparticles
文献类型：期刊论文
| 作者 | Z. Q. Wang ; F. Gao ; K. F. Wang ; H. Yu ; Z. F. Ren ; J. M. Liu |
| 刊名 | Materials Science and Engineering B-Solid State Materials for Advanced Technology
 |
| 出版日期 | 2007 |
| 卷号 | 136期号:1页码:96-100 |
| 关键词 | perovskite manganese oxides nanomaterials magnetic properties charge ordering manganese oxides field order |
| ISSN号 | 0921-5107 |
| 中文摘要 | Pr0.57Ca0.43MnO3 nanoparticles with an average particle size of similar to 20 nm have been synthesized using hydrothermal method in combination with post-annealing, and characterized using X-ray diffraction, X-ray photoelectron spectrometer, high-resolution transmission electron microscopy and superconducting quantum interference device magnetometery. The results show that the hydrothermal synthesis of Pr1-xCaxMnO3 compound below 240 degrees C is difficult. The Pr0.57Ca0.43MnO3 nanoparticles obtained by annealing the hydrothermal products at 900 degrees C for 2 h present an orthorhombic perovskite structure with the same lattice as bulk Pr0.6Sr0.4MnO3. Magnetic characterization reveals that the low-temperature antiferromagnetic and charge ordering transitions identified in bulk Pr0.57Ca0.43MnO3 are completely suppressed in the nanoparticles, while a ferromagnetic transition occurs at -110 K. The spin-freezing behavior at low temperature for the Pr0.57Ca0.43MnO3 nanoparticles is demonstrated. (c) 2006 Elsevier B.V. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/33887]  |
| 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 | Z. Q. Wang,F. Gao,K. F. Wang,et al. Synthesis and magnetic properties of Pr0.57Ca0.43MnO3 nanoparticles[J]. Materials Science and Engineering B-Solid State Materials for Advanced Technology,2007,136(1):96-100. |
| APA | Z. Q. Wang,F. Gao,K. F. Wang,H. Yu,Z. F. Ren,&J. M. Liu.(2007).Synthesis and magnetic properties of Pr0.57Ca0.43MnO3 nanoparticles.Materials Science and Engineering B-Solid State Materials for Advanced Technology,136(1),96-100. |
| MLA | Z. Q. Wang,et al."Synthesis and magnetic properties of Pr0.57Ca0.43MnO3 nanoparticles".Materials Science and Engineering B-Solid State Materials for Advanced Technology 136.1(2007):96-100. |
入库方式： OAI收割
来源：金属研究所
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