Pressure-induced phase transition to a novel spin state in striped nickelates
arXiv:0806.3398 · doi:10.1143/JPSJ.77.123709
Abstract
We analyze pressure effects on stripe states within a selfconsistent Hartree-Fock calculation for a model of a striped nickelates. The results show a transition induced by high pressure and predict possible new spin states. We describe characteristics in the phonon excitations at the predicted transition, based on a real-space random phase approximation.
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