期刊
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
卷 272, 期 -, 页码 E1155-E1156出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jmmm.2003.12.201
关键词
hematite; maghemite; nanorod; ferromagnetic; superparamagnetic
Rod-shaped hematite and maghemite nanoparticles with diameters of 5 nm and lengths of 16 and 17 nm were synthesized by a newly designed sol-gel mediated reaction and their magnetic properties were investigated. The hematite nanorods showed ferromagnetic behavior from 5 to 300 K, while the maghemite nanorods exhibited superparamagnetic behavior with a blocking temperature at around 130 K. (C) 2003 Elsevier B.V. All rights reserved.
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