Abstract
We discuss the implications of recent de Haas–van Alphen effect (magnetic quantum oscillation) measurements on cubic CeIn 3, which reveal pockets of f-electron holes centered at Q / 2 in the Brillouin zone (where Q = [ π , π , π ] is the antiferromagnetic modulation vector). This system had previously been identified as a local-moment magnet in which the f-electrons are completely localized. We discuss the Lifshitz Fermi surface topological changes in these pockets that takes place in strong magnetic fields and that is likely to take place as a function of pressure. We further discuss the implications for pressure-tuned superconductivity and the relevance of the experimental findings to CeRhIn 5 and cuprate superconductors.
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