Anomalous magnetic response of the spin-one-half Falicov-Kimball model

1 July 1998

journal article
research article
Published by American Physical Society (APS) in Physical Review B

Vol. 58 (1) , 322-329
https://doi.org/10.1103/physrevb.58.322

Abstract

The infinite-dimensional spin-one-half Falicov-Kimball model in an external magnetic field is solved exactly. We calculate the magnetic susceptibility in zero field, and the magnetization as a function of the field strength. The model shows an anomalous magnetic response from thermally excited local moments that disappear as the temperature is lowered. We describe possible real materials that may exhibit this kind of anomalous behavior.

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