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How a non-Fermi liquid can emerge at a metal-insulator transition

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If you have a question about this talk, please contact Dr Jonathan Keeling .

Quantum phase transitions in metallic magnets are a popular route to unconventional “non-Fermi” liquids. We describe an alternate route, starting from a non-magnetic, band insulator. Depending on the impurity used to induce metallicity, different levels of quantum fluctuations are introduced, and Fermi or non-Fermi-liquid behaviour is found.

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