Synthesis and magnetic properties of Pr0.57Ca0.43MnO3 nanoparticles

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	Synthesis and magnetic properties of Pr0.57Ca0.43MnO3 nanoparticles
	Z. Q. Wang; F. Gao; K. F. Wang; H. Yu; Z. F. Ren; J. M. Liu
	2007
发表期刊	Materials Science and Engineering B-Solid State Materials for Advanced Technology
ISSN	0921-5107
卷号	136 期号:1 页码:96-100
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.
部门归属	nanjing univ, solid state microstruct lab, nanjing 210093, peoples r china. boston coll, dept phys, chestnut hill, ma 02467 usa. chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china.;wang, zq (reprint author), nanjing univ, solid state microstruct lab, nanjing 210093, peoples r china;zhqwang@nju.edu.cn
关键词	Perovskite Manganese Oxides Nanomaterials Magnetic Properties Charge Ordering Manganese Oxides Field Order
URL	查看原文
WOS记录号	WOS:000243834200019
引用统计	被引频次：17[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/321006/33887
专题	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.