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Physics Department Colloquia

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Event Number 5151

  Friday, September 27th, 2019

Superconductivity in Nickelates: Similarities and Differences from Cuprates
Time: 3:30 pm
Place: 2241 Chamberlin Hall
Speaker: Michael Norman, Argonne National Lab
Abstract: The recent discovery of superconductivity in Sr-doped NdNiO2 has refocused attention on the relation of nickelates to cuprates. First I review the experimental situation, including earlier work on trilayer nickelates, as well as the new work on infinite-layer nickelates. Next I comment on various proposed models, including charge-transfer, Mott, and Kondo. Then I relate these models to the electronic structure of nickelates, contrasting this with cuprates. Finally, I comment on relevant parameters in regards to the observation of superconductivity.
Host: Alex Levchenko
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