Low frequency spectroscopy of the correlated metallic system $Ca_xSr_{1-x}VO_3$

F. Iga; H. Makino; I. H. Inoue; M. J. Rozenberg; Y. Nishihara

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Low frequency spectroscopy of the correlated metallic system $Ca_xSr_{1-x}VO_3$

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arxiv cond-mat/9603051 v1 pith:DNBI2NEB submitted 1996-03-07 cond-mat

M. J. Rozenberg , I. H. Inoue , H. Makino , F. Iga , Y. Nishihara This is my paper

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abstract

We study the photoemission and optical conductivity response of the strongly correlated metallic system $Ca_xSr_{1-x}VO_3$. We find that the basic features of the transfer of spectral weight in photoemission experiments and the unusual lineshape of the optical response can be understood by modeling the system with a one band Hubbard model close to the Mott-Hubbard transition. We present a detailed comparison between the low frequency experimental data and the corresponding theoretical predictions obtained within the LISA method that is exact in the limit of large lattice connectivity.

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