Spectral evolution in (Ca,Sr)RuO_3 near the Mott-Hubbard transition

Abstract

We investigated the optical properties of (Ca,Sr)RuO_3 films on the borderline of a metal-insulator (M-I) transition. Our results show all of the predicted characteristics for a metallic Mott-Hubbard system, including (i) a mass enhancement in dc-limit, (ii) an U/2 excitation, and (iii) an U excitation. Also, a self-consistency is found within the Gutzwiller-Brinkman-Rice picture for the Mott transition. Our finding displays that electron correlation should be important even in 4d materials.

REVTEX 4 pages, 5 EPS figures, submitted to Phys. Rev. Lett

References in corpus (3)

• Non-Fermi liquid behavior of SrRuO_3 -- evidence from infrared conductivity
• Polaron Absorption in a Perovskite Manganite La0.7Ca0.3MnO3
• Band-width control in a perovskite-type 3d^1 correlated metal Ca_1-xSr_xVO_3. II. Optical spectroscopy investigation

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