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SUMMARY:Understanding strongly correlated quantum materials using embedded
  dynamical mean-field theory - Khandker F. Quader\, Department of Physics\
 , Kent State University\, USA
DTSTART:20240226T140000Z
DTEND:20240226T143000Z
UID:TALK212644@talks.cam.ac.uk
CONTACT:Dr Sun-Woo Kim
DESCRIPTION:Novel materials whose properties are influenced by the presenc
 e of d- and/or f-electrons have been of sustained interest to the condense
 d matter community. Innovative material syntheses\, together with thermody
 namic\, transport and cutting-edge spectroscopy experiments have been reve
 aling an intriguing array of properties. These have also brought to fore t
 heoretical challenges posed by the presence of strong electronic correlati
 ons. Large-scale first-principle computational approaches have been valuab
 le in deciphering experimental findings and predicting new results. I will
  first discuss basic ideas underlying dynamical mean field theory (DMFT)\,
  and then the self-consistent embedded dynamical mean-field theory (eDMFT)
  approach that we use. I will show how we depict the emergent many-body st
 ates in the nickelates and our proposed correlation-temperature (U-T) phas
 e diagram. The key features are a low-T Fermi liquid (FL) phase\, a high-T
  Curie-Weiss regime\, and an antiferromagnetic phase in a relatively small
  U-T region.
LOCATION:Zoom link: https://zoom.us/j/92447982065?pwd=RkhaYkM5VTZPZ3pYSHpt
 UXlRSkppQT09
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