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- W2274069069 abstract "We report the amplitude scaling behavior of Frenkel exciton chains with nearest-neighbor correlated off-diagonal random interactions. The band center spectrum and its localization properties are investigated through the integrated density of states and the inverse localization length. The correlated random interactions are produced through a binary sequence similar to the interactions in spin glass chains. We produced sets of data with different interaction strength and wrong sign concentrations that collapsed after scaling to the predictions of a theory developed earlier for Dirac fermions with random-varying mass. We found good agreement as the energy approaches the band center for a wide range of concentrations. We have also established the concentration dependence of the lowest order expansion coefficient of the scaling amplitudes for the correlated case. The correlation causes unusual behavior of the spectra, i.e., deviations from the Dyson-type singularity." @default.
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- W2274069069 date "2005-12-20" @default.
- W2274069069 modified "2023-09-27" @default.
- W2274069069 title "Amplitude scaling behavior of low-energy Frenkel exciton chains with correlated off-diagonal disorder" @default.
- W2274069069 hasPublicationYear "2005" @default.
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