https://scholars.lib.ntu.edu.tw/handle/123456789/289373
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.author | Banerjee, S. | en_US |
dc.contributor.author | Roy, S. | en_US |
dc.contributor.author | JENG-WEI CHEN | en_US |
dc.contributor.author | Chakravorty, D. | en_US |
dc.creator | Banerjee, S.;Roy, S.;Chen, J.W.;Chakravorty, D. | - |
dc.date.accessioned | 2018-09-10T03:27:59Z | - |
dc.date.available | 2018-09-10T03:27:59Z | - |
dc.date.issued | 2000 | - |
dc.identifier.issn | 03048853 | - |
dc.identifier.uri | http://www.scopus.com/inward/record.url?eid=2-s2.0-0034238893&partnerID=MN8TOARS | - |
dc.identifier.uri | http://scholars.lib.ntu.edu.tw/handle/123456789/289373 | - |
dc.description.abstract | Nanometre-sized iron particles with diameters in the range 4.9-11.1 nm have been grown within a silica gel matrix by electrodeposition. Electron diffraction pattern shows the presence of an oxide (either Fe3O4 or γ-Fe2O3) shell on these particles. The variation of magnetization as a function of temperature has been analyzed using the Bloch equation. The Bloch exponent obtained as a function of particle size shows a trend different from that predicted theoretically. Zero field cooled (ZFC) and field cooled (FC) measurements on the nanocomposites have been carried out over the temperature range 2-300 K. Coercivity shows a decrease with increasing temperature. Also, a loop shift as a function of temperature is exhibited by the specimens. This shift disappears at a temperature around 50 K. This behavior is ascribed to an exchange interaction of the iron core with a ferrimagnetic oxide (either Fe3O4 or γ-Fe2O3) shell. | - |
dc.language | en | en |
dc.relation.ispartof | Journal of Magnetism and Magnetic Materials | en_US |
dc.source | AH | - |
dc.subject.other | Coercive force; Crystal growth; Electrodeposition; Ferrimagnetic materials; Magnetization; Nanostructured materials; Particle size analysis; Silica gel; Synthesis (chemical); Thermal effects; Nanoparticles; Iron | - |
dc.title | Magnetic properties of oxide-coated iron nanoparticles synthesized by electrodeposition | - |
dc.type | journal article | en |
dc.identifier.doi | 10.1016/S0304-8853(00)00417-0 | - |
dc.identifier.scopus | 2-s2.0-0034238893 | - |
item.fulltext | no fulltext | - |
item.grantfulltext | none | - |
dc.relation.pages | 45-52 | - |
dc.relation.journalvolume | 219 | - |
dc.relation.journalissue | 1 | - |
item.openairecristype | http://purl.org/coar/resource_type/c_6501 | - |
item.openairetype | journal article | - |
item.grantfulltext | none | - |
item.cerifentitytype | Publications | - |
item.fulltext | no fulltext | - |
crisitem.author.dept | Physics | - |
crisitem.author.orcid | 0000-0002-6387-6814 | - |
crisitem.author.parentorg | College of Science | - |
顯示於: | 物理學系 |
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