Optical conductivity in Mott-Hubbard systems

M. J. Rozenberg; G. Kotliar; H. Kajueter; G. A. Thomas; D. H. Rapkine; J. M. Honig; P. Metcalf

doi:10.1103/PhysRevLett.75.105

Optical conductivity in Mott-Hubbard systems

M. J. Rozenberg, G. Kotliar, H. Kajueter, G. A. Thomas, D. H. Rapkine, J. M. Honig, P. Metcalf

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Abstract

We study the transfer of spectral weight in the optical spectra of a strongly correlated electron system as a function of temperature and interaction strength. Within a dynamical mean field theory of the Hubbard model that becomes exact in the limit of large lattice coordination, we predict an anomalous enhancement of spectral weight as a function of temperature in the correlated metallic state and report on experimental measurements which agree with this prediction in V2O3. We argue that the optical conductivity anomalies in the metal are connected to the proximity to a crossover region in the phase diagram of the model.

Original language	English (US)
Pages (from-to)	105-108
Number of pages	4
Journal	Physical Review Letters
Volume	75
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevLett.75.105
State	Published - 1995
Externally published	Yes

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1103/PhysRevLett.75.105

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title = "Optical conductivity in Mott-Hubbard systems",

abstract = "We study the transfer of spectral weight in the optical spectra of a strongly correlated electron system as a function of temperature and interaction strength. Within a dynamical mean field theory of the Hubbard model that becomes exact in the limit of large lattice coordination, we predict an anomalous enhancement of spectral weight as a function of temperature in the correlated metallic state and report on experimental measurements which agree with this prediction in V2O3. We argue that the optical conductivity anomalies in the metal are connected to the proximity to a crossover region in the phase diagram of the model.",

author = "Rozenberg, {M. J.} and G. Kotliar and H. Kajueter and Thomas, {G. A.} and Rapkine, {D. H.} and Honig, {J. M.} and P. Metcalf",

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doi = "10.1103/PhysRevLett.75.105",

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AU - Rozenberg, M. J.

AU - Kotliar, G.

AU - Kajueter, H.

AU - Thomas, G. A.

AU - Rapkine, D. H.

AU - Honig, J. M.

AU - Metcalf, P.

PY - 1995

Y1 - 1995

N2 - We study the transfer of spectral weight in the optical spectra of a strongly correlated electron system as a function of temperature and interaction strength. Within a dynamical mean field theory of the Hubbard model that becomes exact in the limit of large lattice coordination, we predict an anomalous enhancement of spectral weight as a function of temperature in the correlated metallic state and report on experimental measurements which agree with this prediction in V2O3. We argue that the optical conductivity anomalies in the metal are connected to the proximity to a crossover region in the phase diagram of the model.

AB - We study the transfer of spectral weight in the optical spectra of a strongly correlated electron system as a function of temperature and interaction strength. Within a dynamical mean field theory of the Hubbard model that becomes exact in the limit of large lattice coordination, we predict an anomalous enhancement of spectral weight as a function of temperature in the correlated metallic state and report on experimental measurements which agree with this prediction in V2O3. We argue that the optical conductivity anomalies in the metal are connected to the proximity to a crossover region in the phase diagram of the model.

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JO - Physical Review Letters

JF - Physical Review Letters

IS - 1

ER -

Optical conductivity in Mott-Hubbard systems

Abstract

All Science Journal Classification (ASJC) codes

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