Abstract:
We study the magnetic structure of layered Li1-xNi1+xO2 and propose a new scheme: the AF interaction between the excess Ni2+ in the Li layers and the Ni3+ ions in the Ni planes, gives rise to the formation of ferrimagnetic clusters, which control the physics of these systems. The values of the different interactions are estimated from a mean field calculation in the high temperature limit. For the small x samples studied here the method does not yield an accurate value of \({J_{AF}}\), but it is very sensitive to the intralayer interactions, allowing to conclude that they are ferromagnetic. The recent proposal of a quantum spin-orbital liquid in this system is discussed and the comparison with Jahn-Teller distorted NaNiO2 is made.
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Received 8 December 1999
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Núnez-Regueiro, M., Chappel, E., Chouteau, G. et al. Magnetic structure of \(L{i_{1 - x}}N{i_{1 + x}}{o_2}\) . Eur. Phys. J. B 16, 37–41 (2000). https://doi.org/10.1007/s100510070246
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DOI: https://doi.org/10.1007/s100510070246