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.
Kasuya, IBM Journal of Research and Development 14, 214 (1970)
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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.