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

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

1998-03-02

arxiv.org/abs/cond-mat/9803027v1

Phys. Rev. B 58 322--329 (1998)

Physics

Condensed Matter

Strongly Correlated Electrons

17 pages, 6 encapsulated postscript figures (included), submitted to Phys. Rev. B

Scientific paper

10.1103/PhysRevB.58.322

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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