Abstract
A discussion is given of the couplings between the three sets of variables (conduction electrons,f-electrons, and lattice degrees of freedom) involved in intermediate valent behaviour and the resulting Hamiltonian is formulated. Emphasis is put on couplings between electronic and lattice variables, in particular on “spin”-flip terms resulting from spin orbit coupling. Concerning anomalies in the electrical resistivity, an explanation which doesnot rely on the Kondo effect is given.
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Capellmann, H., Neumann, K.U. Intermediate valency I: Couplings, Hamiltonian, and electrical resistivity. Z. Physik B - Condensed Matter 67, 53–61 (1987). https://doi.org/10.1007/BF01307307
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DOI: https://doi.org/10.1007/BF01307307