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http://hdl.handle.net/2445/10874
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DC Field | Value | Language |
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dc.contributor.author | Barco, Enrique del, 1968- | - |
dc.contributor.author | Durán, M. | - |
dc.contributor.author | Hernández Ferràs, Joan Manel | - |
dc.contributor.author | Tejada Palacios, Javier | - |
dc.contributor.author | Zysler, R. D. | - |
dc.contributor.author | Vásquez Mansilla, M. | - |
dc.contributor.author | Fiorani, D. | - |
dc.date.accessioned | 2010-01-25T12:37:48Z | - |
dc.date.available | 2010-01-25T12:37:48Z | - |
dc.date.issued | 2002 | - |
dc.identifier.issn | 0163-1829 | - |
dc.identifier.uri | http://hdl.handle.net/2445/10874 | - |
dc.description.abstract | In this paper we report magnetic relaxation data for antiferromagnetic a-Fe2O3 particles of 5-nm mean diameter in the temperature range 0.1–25 K. The average spin value of these particles S.124 and the uniaxial anisotropy constant D.1.631022 K have been estimated from the experimental values of the blocking temperature and anisotropy field. The observed plateau in the magnetic viscosity from 3 K down to 100 mK agrees with the occurrence of spin tunneling from the ground state SZ5S. However, the scaling M vs T ln(n0t) is broken below 5 K, suggesting the occurrence of tunneling from excited states below this temperature. | - |
dc.format.extent | 4 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | eng |
dc.publisher | The American Physical Society | eng |
dc.relation.isformatof | Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevB.65.052404 | cat |
dc.relation.ispartof | Physical Review B, 2002, vol. 65, núm, 5, p. 52404-1-52404-4 | eng |
dc.relation.uri | http://dx.doi.org/10.1103/PhysRevB.65.052404 | - |
dc.rights | (c) The American Physical Society, 2002 | eng |
dc.source | Articles publicats en revistes (Física de la Matèria Condensada) | - |
dc.subject.classification | Relaxació magnètica | cat |
dc.subject.classification | Propietats magnètiques | cat |
dc.subject.other | Magnetic properties | eng |
dc.subject.other | Magnetic relaxation | eng |
dc.title | Magnetic relaxation measurements of (alpha)-Fe2O3 antiferromagnetic particles below 1 K | eng |
dc.type | info:eu-repo/semantics/article | eng |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 514123 | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Física de la Matèria Condensada) |
Files in This Item:
File | Description | Size | Format | |
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514123.pdf | 62.6 kB | Adobe PDF | View/Open |
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