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    Université de Fribourg

    Rubidium superoxide: A p-electron Mott insulator

    Kováčik, Roman ; Werner, Philipp ; Dymkowski, Krzysztof ; Ederer, Claude

    In: Physical Review B - Condensed Matter and Materials Physics, 2012, vol. 86, no. 7, p. 075130

    Rubidium superoxide, RbO₂, is a rare example of a solid with partially filled electronic p states, which allows us to study the interplay of spin and orbital order and other effects of strong electronic correlations in a material that is quite different from the conventional d or f electron systems. Here we show, using a combination of density functional theory (DFT) and dynamical mean-field...