Low Frequency Spectroscopy of the Correlated Metallic System <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mrow><mi mathvariant="normal">Ca</mi></mrow><mrow><mi mathvariant="italic">x</mi></mrow></msub></mrow><mrow><msub><mrow><mi mathvariant="normal">Sr</mi></mrow><mrow><mn>1</mn><mo>−</mo><mi mathvariant="italic">x</mi></mrow></msub></mrow><mrow><msub><mrow><mi mathvariant="normal">VO</mi></mrow><mrow><mn>3</mn></mrow></msub></mrow></math></span>

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

doi:10.1103/PhysRevLett.76.4781

Low Frequency Spectroscopy of the Correlated Metallic System ${Ca}_{x} {Sr}_{1 - x} {VO}_{3}$

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

Phys. Rev. Lett. 76, 4781 – Published 17 June 1996

Abstract

We study the photoemission and optical conductivity response of the strongly correlated metallic system ${Ca}_{x} {Sr}_{1 - x} {VO}_{3}$ . We find that the basic features of the transfer of spectral weight in photoemission experiments and the unusual line shape 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 local impurity self-consistent approximation that is exact in the limit of large lattice connectivity.

Received 8 November 1995

DOI:https://doi.org/10.1103/PhysRevLett.76.4781

Authors & Affiliations

M. J. Rozenberg¹, I. H. Inoue², H. Makino³, F. Iga⁴, and Y. Nishihara⁴

¹LPT, Ecole Normale Supérieure, 24 rue Lhomond, 75005 Paris, France
²PRESTO Research Development Corporation of Japan, and Electrotechnical Laboratory, Tsukuba 305, Japan
³Institute of Applied Physics, University of Tsukuba, Tsukuba 305, Japan
⁴Electrotechnical Laboratory, Tsukuba 305, Japan