Abstract
Among many f-electrons (rare-earth and actinides) compounds especially interesting are so called “heavy fermion” (HF) systems. Anomalously high values of electronic specific heat and low-temperature magnetic susceptibility evidence high effective mass m* value for charge carriers that can be tens and hundreds time larger than electron mass m. Magnetic and transport properties of such compounds are strongly temperature dependent. For high T f-electrons seems to be weakly interacting with itinerant electrons forming localized magnetic moments. However for low temperatures the picture is drastically different: local magnetic moments are suppressed and transport properties correspond to approaching to insulating state with T decrease. At T = 0 they could become insulators due to gap appearance on Fermi surface. Such systems are called Kondo insulators.
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© 2010 Springer-Verlag Berlin Heidelberg
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Anisimov, V., Izyumov, Y. (2010). Periodic Anderson Model (PAM). In: Electronic Structure of Strongly Correlated Materials. Springer Series in Solid-State Sciences, vol 163. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-04826-5_5
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DOI: https://doi.org/10.1007/978-3-642-04826-5_5
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Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-04825-8
Online ISBN: 978-3-642-04826-5
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