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dc.contributor.authorRong, Chuan-Bing
dc.contributor.authorShen, Bao-Gen
dc.contributor.authorZhang, Hong-Wei
dc.contributor.authorLiu, J. Ping
dc.date.accessioned2010-11-01T16:38:08Z
dc.date.available2010-11-01T16:38:08Z
dc.date.issued2006
dc.identifier.citationPreviously published in Applied Physics Lettersen_US
dc.identifier.issn0003-6951
dc.identifier.urihttp://hdl.handle.net/10106/5103
dc.description.abstractCoercivity mechanism of the precipitation-hardened Sm Co,Fe,Cu,Zr z high-temperature magnets was found to vary with temperature by measurements of reversible magnetization. The magnetization reversal is mainly controlled by domain-wall pinning when temperature is lower than 800 K, while is mainly dominated by nucleation at higher temperature. It is interesting to find that the anomalous temperature dependence of coercivity Hc T near Curie temperature of the 1:5 phase is caused by the fast drop of intergranular exchange coupling. This mechanism can also explain the coercivity behavior that the anomalous Hc T tends to disappear with increasing z value.en_US
dc.description.sponsorshipDepartment of Physics, University of Texas at Arlington; State Key Laboratory of Magnetism, Institute of Physics and Center for Condensed Matter Physics, Chinese Academy of Sciences, Beijing, Chinaen_US
dc.language.isoenen_US
dc.publisherAIPen_US
dc.subjectCurie temperatureen_US
dc.subjectCobalt alloysen_US
dc.subjectCoercive forceen_US
dc.subjectCopper alloysen_US
dc.subjectExchange interactions (electron)en_US
dc.subjectFerromagnetic materialsen_US
dc.subjectIron alloysen_US
dc.subjectMagnetic domain wallsen_US
dc.subjectMagnetisation reversalen_US
dc.subjectNucleationen_US
dc.subjectPrecipitationen_US
dc.subjectHardeningen_US
dc.subjectSamarium alloysen_US
dc.subjectZirconium alloysen_US
dc.titleMechanism of the anomalous temperature dependence of coercivity in Sm(Co, Fe, Cu, Zr)z high temperature magnetsen_US
dc.typeArticleen_US
dc.identifier.externalLinkhttps://www.uta.edu/ra/real/editprofile.php?onlyview=1&pid=1857en_US
dc.identifier.externalLinkDescriptionLink to Reseach Profilesen_US


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