Normal and anomalous responses of the Fermi liquid in the charge and spin channels

Y. M. Malozovsky; Jiang-Di Fan

doi:10.1117/12.250282

5 July 1996 Normal and anomalous responses of the Fermi liquid in the charge and spin channels

Y. M. Malozovsky, Jiang-Di Fan

Proceedings Volume 2697, Oxide Superconductor Physics and Nano-Engineering II; (1996) https://doi.org/10.1117/12.250282
Event: Photonics West '96, 1996, San Jose, CA, United States

Abstract

By means of the perturbative diagram approach the effects of vertex corrections on the charge and spin responses of the Fermi liquid are considered. It is shown that the interaction in the particle-hole channel induces the multipair excitations in both the charge and spin channels. Such excitations lead to the appearance of the anomalous Fermi liquid term Im(chi) approximately - (omega) /T in the charge and spin responses of the Fermi liquid in addition to the normal response approximately - (omega) /v_Fk. Such a contribution of the anomalous term to the charge and spin responses is in agreement with the marginal Fermi-liquid hypothesis proposed by Varma et al. to explain the universal anomalies in the normal state of the cuprate high-Tc superconductors.

Citation Download Citation

Y. M. Malozovsky and Jiang-Di Fan "Normal and anomalous responses of the Fermi liquid in the charge and spin channels", Proc. SPIE 2697, Oxide Superconductor Physics and Nano-Engineering II, (5 July 1996); https://doi.org/10.1117/12.250282

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