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- W4288281511 abstract "Due to the separation between the spin and the orbital screening scales, the normal state of Hund's metals at ambient temperature can be loosely characterized as a partially coherent state with fluctuating spins and quenched orbital moments. With the aim to characterize this situation more precisely, we investigate the Kondo-Kanamori impurity model that describes the low-energy local physics of three-orbital Hund's metals occupied by two or four electrons. Within this model one can diminish the mixed spin-orbital terms and thereby enhance the separation between the two screening scales, allowing a more precise investigation of the intermediate state. Using the numerical renormalization group we calculate the impurity entropy as well as the temperature and frequency dependence of the spin and the orbital susceptibilities. We uncover a non-Fermi-liquid two-channel overscreened SU(3) fixed point that controls the behavior in the intermediate regime. We discuss its fingerprints in the frequency dependence of local orbital susceptibility and the shape of the spectral function." @default.
- W4288281511 created "2022-07-28" @default.
- W4288281511 creator A5008826941 @default.
- W4288281511 creator A5048776773 @default.
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- W4288281511 date "2019-07-16" @default.
- W4288281511 modified "2023-09-29" @default.
- W4288281511 title "Non-Fermi-liquid fixed point in multi-orbital Kondo impurity model relevant for Hund's metals" @default.
- W4288281511 doi "https://doi.org/10.48550/arxiv.1907.07100" @default.
- W4288281511 hasPublicationYear "2019" @default.
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