Oxygen stoichiometry, crystal structure, and magnetism in La$_{0.5}$Sr$_{0.5}$CoO$_{3-δ}$

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dc.creatorHaggerty, Ryan P.
dc.creatorSeshadri, Ram
dc.date2004-05-22
dc.date2004-08-03
dc.date.accessioned2026-07-07T02:58:18Z
dc.date.available2026-07-07T02:58:18Z
dc.descriptionWe have prepared a series of polycrystalline samples La$_{0.5}$Sr$_{0.5}$CoO$_{3-δ}$} with $0 < δ\le 0.21$ and characterized their oxygen content, crystal structure, and magnetic properties. While the fully oxygenated samples are good ferromagnets, samples with larger $δ$ values display increasingly broad magnetic transitions. The saturation magnetization at 5 K falls rapidly as $δ$ increases. First principles electronic structure calculations provide insights into the magnetic behavior of the fully oxygenated compound, and the manner in which ferromagnetic ordering is affected by increasing oxygen non-stoichiometry.
dc.description11 pages and 6 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0405535
dc.identifierhttp://arxiv.org/abs/cond-mat/0405535
dc.identifierJ. Phys. Condens. Matter 16 (2004) 6477-6484.
dc.identifierdoi:10.1088/0953-8984/16/36/013
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/24030
dc.subjectMaterials Science
dc.subjectStrongly Correlated Electrons
dc.titleOxygen stoichiometry, crystal structure, and magnetism in La$_{0.5}$Sr$_{0.5}$CoO$_{3-δ}$
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