Indirect 5d-mediated exchange dominates in CsCeSe2, superexchange dominates in RbCeO2, and both contribute equally in KCeS2, with calculated spin Hamiltonians yielding magnetic excitation spectra in good agreement with experiment.
Fiore Mosca, L
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5d-mediated indirect exchange and effective spin Hamiltonians in Ce triangular-lattice delafossites
Indirect 5d-mediated exchange dominates in CsCeSe2, superexchange dominates in RbCeO2, and both contribute equally in KCeS2, with calculated spin Hamiltonians yielding magnetic excitation spectra in good agreement with experiment.