Spin resonance and high-frequency optical properties of the cuprates

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8 Scopus citations


We argue that recently observed superconductivity-induced blue shift of the plasma frequency δωpl in Bi2Sr 2CaCu2O8+δ [Molegraaf et al., Science 295, 2239 (2002)] 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 δωpl is consistent with the small integrated spectral weight of the resonance, and its temperature dependences closely follow that of the spin-resonance peak. We also discuss the differential optical integral for the conductivity.

Original languageEnglish (US)
Article number100504
Pages (from-to)100504-1-100504-4
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number10
StatePublished - Sep 2004
Externally publishedYes


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