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The spin resonance and high frequency optical properties of the cuprates

Ar. Abanov·Andrey V. Chubukov
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Abstract

We argue that recently observed superconductivity-induced blue shift of the plasma frequency $δω_{pl}$ in $Bi_2Sr_2CaCu_2O_{8+δ}$ is related to the change in the integrated dynamical structure factor associated with the development of the spin resonance below $T_c$. We show that the magnitude of $δω_{pl}$ is consistent with the small integrated spectral weight of the resonance, and its temperature dependences closely follow that of the spin resonance peak.

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Ar. Abanov, Andrey V. Chubukov. 2004-01-14. The spin resonance and high frequency optical properties of the cuprates. https://doi.org/10.1103/physrevb.70.100504

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