Stoichiometry of LiNiO2 studied by Mössbauer spectroscopy
(2002) Hyperfine Interactions — Vol. 139/140, n° 1/4, p. 107-112 (2002)
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- 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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Ksenofontov, V., Reiman, S., Walcher, D., Garcia, Y., Doroshenko, N., & Gütlich, P. (2002). Stoichiometry of LiNiO2 studied by Mössbauer spectroscopy. Hyperfine Interactions, 139/140(1/4), 107-112. https://doi.org/10.1023/A:1021271321658 (Original work published 2002)