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UID:DSC-5973
DTSTART;TZID=Europe/Berlin:20131014T110000
SEQUENCE:1381737117
TRANSP:OPAQUE
DTEND;TZID=Europe/Berlin:20131014T120000
URL:https://www.dresden-science-calendar.de/calendar/de/detail/5973
LOCATION:IFW\, Helmholtzstraße 2001069 Dresden
SUMMARY:Khaliullin: Excitonic Magnetism in Van Vleck-type d4 Mott Insulator
 s
CLASS:PUBLIC
DESCRIPTION:Speaker: Prof. Dr. Giniyat Khaliullin\nInstitute of Speaker: Ma
 x-Planck-Institut for Solid State Research\, Stuttgart\nTopics:\nMateriali
 en\, Physik\n Location:\n  Name: IFW (B3E.26\, IFW Dresden)\n  Street: Hel
 mholtzstraße 20\n  City: 01069 Dresden\n  Phone: \n  Fax: \nDescription: 
 In Mott insulators with d4 electronic configuration such as of Re{3+}\, Ru
 {4+}\, Os{4+}\, Ir{5+}\, spin-orbit coupling dictates Van Vleck-type nonma
 gnetic ground state with angular momentum J=0\, and magnetic response is g
 overned by gapped singlet-triplet excitations. We derive the exchange inte
 ractions between these excitons and study their collective behavior on dif
 ferent lattices. In perovskites\, a conventional bose-condensation of exci
 tons into a magnetic state is found\, while an unexpected one-dimensional 
 behavior supporting spin-liquid states emerges in honeycomb lattices\, due
  to bond directional nature of exciton interactions in case of 90 degree d
 -p-d bonding geometry. .
DTSTAMP:20260507T065353Z
CREATED:20131002T075029Z
LAST-MODIFIED:20131014T075157Z
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