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- W3105567571 abstract "A recent, major, puzzle in the core-level photoemission spectra of doped manganites is the observation of a 1–2 eV wide shoulder with intensity varying with temperature T as the square of the magnetization over a T scale of order 200 K, an order of magnitude less than electronic energies. This is addressed and resolved here, by extending a recently proposed two-fluid polaron–mobile electron model for these systems to include core-hole effects. The position of the shoulder is found to be determined by Coulomb and Jahn-Teller energies, while its spectral weight is determined by the mobile electron energetics which is strongly T and doping dependent, due to annealed disorder scattering from the polarons and the t2g core spins. Our theory accounts quantitatively for the observed T dependence of the difference spectra, and furthermore, explains the observed correspondence between spectral changes due to increasing doping and decreasing T." @default.
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- W3105567571 date "2008-05-01" @default.
- W3105567571 modified "2023-10-18" @default.
- W3105567571 title "Theory of the unusual doping and temperature dependence of photoemission spectra in manganites" @default.
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- W3105567571 doi "https://doi.org/10.1209/0295-5075/82/47010" @default.
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