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DC Field | Value | Language |
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dc.citation.endPage | 134007-5 | - |
dc.citation.number | 13 | - |
dc.citation.startPage | 134007-1 | - |
dc.citation.title | JOURNAL OF PHYSICS D-APPLIED PHYSICS | - |
dc.citation.volume | 41 | - |
dc.contributor.author | Berkowiz, AE | - |
dc.contributor.author | Rodriguez, GF | - |
dc.contributor.author | Hong, JI | - |
dc.contributor.author | An, Kwangjin | - |
dc.contributor.author | Hyeon, T | - |
dc.contributor.author | Agarwal, N | - |
dc.contributor.author | Smith, DJ | - |
dc.contributor.author | Fullerton, EE | - |
dc.date.accessioned | 2023-12-22T08:38:08Z | - |
dc.date.available | 2023-12-22T08:38:08Z | - |
dc.date.created | 2015-07-28 | - |
dc.date.issued | 2008-07 | - |
dc.description.abstract | We report the microstructural and magnetic properties of monodispersed nanoparticles ( NPs) of antiferromagnetic MnO ( T-N = 118 K), with epitaxial ferrimagnetic Mn3O4 ( T-C = 43 K) shells. Above T-C, an unusually large magnetization is present, produced by the uncompensated spins ( UCSs) on the surface of the MnO particles. These spins impart a net anisotropy to the MnO particles that is approximately three orders of magnitude larger than the bulk value. As a result, an anomalously high blocking temperature is exhibited by the MnO particles, and finite coercivity and exchange bias are present above T-C. When field cooled below T-C, a strong exchange bias was established in the Mn3O4 shells as a result of high net anisotropy of the MnO particles. A large coercivity was also observed. Models of several aspects of the behaviour of this unusual system emphasized the essential role of the UCSs on the surfaces of the MnO NPs. | - |
dc.identifier.bibliographicCitation | JOURNAL OF PHYSICS D-APPLIED PHYSICS, v.41, no.13, pp.134007-1 - 134007-5 | - |
dc.identifier.doi | 10.1088/0022-3727/41/13/134007 | - |
dc.identifier.issn | 0022-3727 | - |
dc.identifier.scopusid | 2-s2.0-48249096786 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/12886 | - |
dc.identifier.url | http://iopscience.iop.org/0022-3727/41/13/134007/ | - |
dc.identifier.wosid | 000256928100015 | - |
dc.language | 영어 | - |
dc.publisher | IOP PUBLISHING LTD | - |
dc.title | Monodispersed MnO nanoparticles with epitaxial Mn3O4 shells | - |
dc.type | Article | - |
dc.description.journalRegisteredClass | scopus | - |
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