Pressure-induced phase transition to a novel spin state in striped nickelates

Details Pressure-induced phase transition to a novel spin state in striped nickelates Pressure-induced phase transition to a novel spin state in striped nickelates

2008-06-20

arxiv.org/abs/0806.3398v2

J. Phys. Soc. Jpn. 77 (2008) 123709

Physics

Condensed Matter

Strongly Correlated Electrons

Scientific paper

10.1143/JPSJ.77.123709

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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