DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, SJ | ko |
dc.contributor.author | Jeong, JR | ko |
dc.contributor.author | Shin, Sung-Chul | ko |
dc.contributor.author | Kim, JC | ko |
dc.contributor.author | Kim, Jong-Duk | ko |
dc.date.accessioned | 2009-11-24T05:11:08Z | - |
dc.date.available | 2009-11-24T05:11:08Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2004-11 | - |
dc.identifier.citation | JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, v.282, pp.147 - 150 | - |
dc.identifier.issn | 0304-8853 | - |
dc.identifier.uri | http://hdl.handle.net/10203/13197 | - |
dc.description.abstract | We have synthesized the maghemite (gamma-Fe2O3) nanoparticles by a chemical coprecipitation technique of ferric and ferrous ions in alkali solution through the pipette drop method (pipette diameter: 2000 mum) and the piezoelectric nozzle method (nozzle size: 50 mum). The microstructures of nanoparticles were characterized by X-ray diffractometry (XRD) and transmission electron microscopy (TEM). The size distribution of the maghemite nanoparticles prepared by typical pipette drop method is from 5 to 8 nm. However, the nanoparticles made by piezoelectric nozzle method shows a small size and a very narrow size distribution from 3 to 5 nm. Zero-field-cooling (ZFC) and field-cooling (FC) magnetization measurements were performed using a superconducting quantum interference device magnetometer from 2 to 300 K to investigate the magnetic properties of nanoparticles. The FC/ZFC magnetization measurements showed a typical superparamagnetic behavior with very narrow size distribution. (C) 2004 Elsevier B.V. All rights reserved. | - |
dc.description.sponsorship | This work was supported by Ministry of Science and Technology through the Creative Research Initiatives Project and Center for Ultramicrochemical Process Systems Project. The authors would like to express their sincere thanks to Dr. Sang-Jun Oh in KBSI for helping in SQUID measurements. | en |
dc.language | English | - |
dc.language.iso | en_US | en |
dc.publisher | ELSEVIER SCIENCE BV | - |
dc.subject | NANOCLUSTERS | - |
dc.title | Synthesis and characterization of superparamagnetic maghemite nanoparticles prepared by coprecipitation technique | - |
dc.type | Article | - |
dc.identifier.wosid | 000224811200036 | - |
dc.identifier.scopusid | 2-s2.0-5744245020 | - |
dc.type.rims | ART | - |
dc.citation.volume | 282 | - |
dc.citation.beginningpage | 147 | - |
dc.citation.endingpage | 150 | - |
dc.citation.publicationname | JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | - |
dc.embargo.liftdate | 9999-12-31 | - |
dc.embargo.terms | 9999-12-31 | - |
dc.contributor.localauthor | Shin, Sung-Chul | - |
dc.contributor.localauthor | Kim, Jong-Duk | - |
dc.contributor.nonIdAuthor | Lee, SJ | - |
dc.contributor.nonIdAuthor | Jeong, JR | - |
dc.contributor.nonIdAuthor | Kim, JC | - |
dc.type.journalArticle | Article; Proceedings Paper | - |
dc.subject.keywordAuthor | maghemite | - |
dc.subject.keywordAuthor | superparamagnetism | - |
dc.subject.keywordAuthor | piezoelectric nozzle method | - |
dc.subject.keywordPlus | NANOCLUSTERS | - |
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