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Memory effects and magnetic interactions in a γ‐Fe2O3γ‐Fe2O3 nanoparticle system

dc.contributor.authorTsoi, G. M.en_US
dc.contributor.authorSenaratne, U.en_US
dc.contributor.authorTackett, R. J.en_US
dc.contributor.authorBuc, E. C.en_US
dc.contributor.authorNaik, Ratnaen_US
dc.contributor.authorVaishnava, P. P.en_US
dc.contributor.authorNaik, Vaman M.en_US
dc.contributor.authorWenger, Lowell E.en_US
dc.date.accessioned2011-11-15T16:03:06Z
dc.date.available2011-11-15T16:03:06Z
dc.date.issued2005-05-15en_US
dc.identifier.citationTsoi, G. M.; Senaratne, U.; Tackett, R. J.; Buc, E. C.; Naik, R.; Vaishnava, P. P.; Naik, V. M.; Wenger, L. E. (2005). "Memory effects and magnetic interactions in a γ‐Fe2O3γ‐Fe2O3 nanoparticle system." Journal of Applied Physics 97(10): 10J507-10J507-3. <http://hdl.handle.net/2027.42/87533>en_US
dc.identifier.urihttps://hdl.handle.net/2027.42/87533
dc.description.abstractThe low-temperature dynamics of a magnetic nanoparticle system (γ‐Fe2O3γ‐Fe2O3—alginate nanocomposite with average particle size around 4 nm4nm) have been studied by superconducting quantum interference device measurements. Using different temperature and field protocols, memory phenomena in the dc magnetization and magnetic relaxation have been observed at temperatures below its blocking temperature TB = 37 KTB=37K. However, aging experiments show an absence of any waiting time dependence in the magnetization relaxation. These observations indicate that the dynamics of this nanoparticle system are governed by a wide distribution of particle relaxation times which arise from the distribution of particle sizes and weak interparticle interactions.en_US
dc.publisherThe American Institute of Physicsen_US
dc.rights© The American Institute of Physicsen_US
dc.titleMemory effects and magnetic interactions in a γ‐Fe2O3γ‐Fe2O3 nanoparticle systemen_US
dc.typeArticleen_US
dc.subject.hlbsecondlevelPhysicsen_US
dc.subject.hlbtoplevelScienceen_US
dc.description.peerreviewedPeer Revieweden_US
dc.contributor.affiliationumDepartment of Physics and Astronomy, Wayne State University, Detroit, Michigan 48201en_US
dc.contributor.affiliationumScience and Mathematics Department, Kettering University, Flint, Michigan 48504en_US
dc.contributor.affiliationumDepartment of Natural Sciences, University of Michigan, Dearborn, Michigan 48128en_US
dc.contributor.affiliationotherDepartment of Physics, University of Alabama at Birmingham, Birmingham, Alabama 35294en_US
dc.description.bitstreamurlhttp://deepblue.lib.umich.edu/bitstream/2027.42/87533/2/10J507_1.pdf
dc.identifier.doi10.1063/1.1853898en_US
dc.identifier.sourceJournal of Applied Physicsen_US
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dc.owningcollnamePhysics, Department of


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