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Toschi A, Capone M, Ortolani M, et al. Temperature dependence of the optical spectral weight in the cuprates: role of electron correlations. Phys Rev Lett. 2005;95(9):097002doi: 10.1103/PhysRevLett.95.097002.
Toschi, A., Capone, M., Ortolani, M., Calvani, P., Lupi, S., & Castellani, C. (2005). Temperature dependence of the optical spectral weight in the cuprates: role of electron correlations. Physical review letters, 95(9), 097002. https://doi.org/10.1103/PhysRevLett.95.097002
Toschi, A, et al. "Temperature dependence of the optical spectral weight in the cuprates: role of electron correlations." Physical review letters vol. 95,9 (2005): 097002. doi: https://doi.org/10.1103/PhysRevLett.95.097002
Toschi A, Capone M, Ortolani M, Calvani P, Lupi S, Castellani C. Temperature dependence of the optical spectral weight in the cuprates: role of electron correlations. Phys Rev Lett. 2005 Aug 26;95(9):097002. doi: 10.1103/PhysRevLett.95.097002. Epub 2005 Aug 24. PMID: 16197238.
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Phys Rev Lett. 2005 Aug 26;95(9):097002. doi: 10.1103/PhysRevLett.95.097002. Epub 2005 Aug 24.

Temperature dependence of the optical spectral weight in the cuprates: role of electron correlations.

Physical review letters

A Toschi, M Capone, M Ortolani, P Calvani, S Lupi, C Castellani

Affiliations

  1. Dipartimento di Fisica, Università di Roma La Sapienza, Piazzale Aldo Moro 2, I-00185 Rome, Italy.

PMID: 16197238 DOI: 10.1103/PhysRevLett.95.097002

Abstract

We compare calculations based on the dynamical mean-field theory of the Hubbard model with the infrared spectral weight W(Omega,T) of La(2-x)SrxCuO4 and other cuprates. Without using fitting parameters we show that most of the anomalies found in W(Omega,T) with respect to normal metals, including the existence of two different energy scales for the doping and the T dependence of W(Omega,T), can be ascribed to strong correlation effects.

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