Abstract
From the 61Ni and 57Fe Mössbauer spectroscopy data follows the cationic site assignment in Li1−x Ni1+x O2. Our data explain the ferromagnetic properties of this material because of the appearance of Ni2+ (S = 1) among Ni3+ (S = 1/2) in Ni3+O2 hexagonal planes. We have no evidence for the ferromagnetic interaction between the NiO2 layers through the excess Ni2+ ions substituting the Li+ ions. The presence of Ni2+ found in the Ni3+O2 planes explains the absence of the Jahn-Teller distortions probably because of the electronic transfer between the Ni3+ and Ni2+ ions.
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© 2002 Springer Science+Business Media Dordrecht
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Ksenofontov, V., Reiman, S., Walcher, D., Garcia, Y., Doroshenko, N., Gütlich, P. (2002). Stoichiometry of LiNiO2 Studied by Mössbauer Spectroscopy. In: Cook, D.C., Hoy, G.R. (eds) Industrial Applications of the Mössbauer Effect. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-0299-8_11
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DOI: https://doi.org/10.1007/978-94-010-0299-8_11
Publisher Name: Springer, Dordrecht
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