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Effect of non-stoichiometry oxygen content on the magnetization of La1.5Sr0.5NiO4+delta

Freeman, P. G., Giblin, Sean ORCID: and Prabhakaran, D. 2011. Effect of non-stoichiometry oxygen content on the magnetization of La1.5Sr0.5NiO4+delta. Journal of Superconductivity and Novel Magnetism 24 (3) , pp. 1149-1152.

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We report on magnetization measurements of La1.5Sr0.5NiO4+delta for delta = 0.01 and delta = -0.01. Zero field-cooled and field-cooled bulk magnetization measurements were performed parallel to the Ni-O planes of single crystals, and on a polycrystalline delta = 0.01 sample. Striking differences in the magnetization curves are observed between the two doping levels that are identifiable in polycrystalline delta = 0.01. The bulk magnetization differences indicate a crossover in the magnetic properties of La2-xSrxNiO4+delta at half doping level, which can be used as a simple non-destructive way to determine whether La1.5Sr0.5NiO4+delta is under or over half doping.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QC Physics
Publisher: Springer
ISSN: 1557-1939
Last Modified: 21 Oct 2022 10:50

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