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Is FeSi a Kondo insulator?

Published Web Location

https://doi.org/10.1016/s0921-4526(97)00137-3
Creative Commons 'BY' version 4.0 license
Abstract

FeSi exhibits a Curie-like susceptibility accompanied by a moderate electronic conductivity at high temperature. At low temperature the magnetic susceptibility goes to zero, and a small charge gap appears. We discuss phenomenological and theoretical aspects of the relationship between FeSi and various rare-earth correlated systems often referred to as Kondo insulators.

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