In CsCr6Sb6, Mott splitting of the kagome flat band creates local moments that hybridize with conduction electrons at low temperature, shown by temperature-dependent STS Fano lineshapes near EF and ARPES quasiparticle peaks that vanish together while high-energy humps persist.
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Mott-Derived Local Moments and Kondo Hybridization in a d-electron Kagome lattice
In CsCr6Sb6, Mott splitting of the kagome flat band creates local moments that hybridize with conduction electrons at low temperature, shown by temperature-dependent STS Fano lineshapes near EF and ARPES quasiparticle peaks that vanish together while high-energy humps persist.