Correlation, excitation, and relaxation of the antiferromagnetic nanoparticle

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dc.creatorLee, J. D.
dc.date2004-01-14
dc.date.accessioned2026-07-07T02:55:54Z
dc.date.available2026-07-07T02:55:54Z
dc.descriptionWe study the dynamics of spins in the canted antiferromagnetic hematite nanoparticles $α$-Fe$_2$O$_3$. The system includes an antiferromagnetic exchange ($J$) between two sublattices as well as the potential dominated by a uniaxial anisotropy and dissipates through the thermally triggered spin-phonon mechanism. The exchange $J$ is found to reduce the superparamagnetic relaxation and drive the incoherent relaxation of transverse spins in the low temperature. Dynamical properties are semi-quantitatively understood within a role of the exchange interaction $J$ and agree well with recent inelastic neutron scattering experiments.
dc.description4 pages (4 figures)
dc.identifierhttps://arxiv.org/abs/cond-mat/0401247
dc.identifierhttp://arxiv.org/abs/cond-mat/0401247
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/23113
dc.subjectStrongly Correlated Electrons
dc.subjectMaterials Science
dc.titleCorrelation, excitation, and relaxation of the antiferromagnetic nanoparticle
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