期刊
APPLIED SURFACE SCIENCE
卷 258, 期 22, 页码 8965-8969出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2012.05.129
关键词
Cr2O3; Nanowire/nanobelt; Chloride assistant growth; Neel temperature
类别
资金
- National Natural Science Foundation of China [10774068, 61176087]
- Natural Science Foundation of Jiangsu Province [BK2009245]
- National Basic Research Program of China [2007CB936302]
- Priority Academic Program Development of Jiangsu Higher Education Institutions
Large amounts of single crystalline Cr2O3 nanowires/nanobelts were obtained using CrCl3 assistant synthesis method. Scanning electron microscopy and transmission electron microscopy results showed the nanowire/nanobelt morphology of the product. X-ray diffraction and high resolution transmission electron microscopy illustrated the formation of the alumina phase Cr2O3 nanowires/nanobelts. A new growth mechanism of the nanowires/nanobelts is proposed and discussed. Zero field and field cooled temperature dependence of magnetization measurements of the nanowires/nanobelts showed clear decrease of the Nel temperature compared to their bulk forms, which is attributed to size and surface effect of the Cr2O3 nanowires/nanobelts. (C) 2012 Elsevier B.V. All rights reserved.
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