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It was pointed out that the Kondo-breakdown transition is a particular form of an obital selective Mott transition (OSMT) where electrons undergoing Mott localization are in the Kondo limit[1,2,3]. In this talk, besides the known mechanism, like different bandwidth or different degeneracies of the orbitals, I will introduce a new mechanism for OSMT which induces the coexistence of localized and delocalized electrons. [1]C. Pepin, Phys. Rev. Lett. 98, 206401 (2007) [2]L. de Medici, A. Georges, G. Kotliar, S. Biermann, Phys. Rev. Lett. 95, 066402 (2005) [3]M. Vojta, J. Low Temp. Phys. 161, 203 (2010) |
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