Theory of terahertz conductivity in the pseudogap phase of the cuprates: A preformed pair perspective
In this paper we deduce transport properties in the presence of a pseudogap associated with precursor superconductivity. Our theoretical analysis is based on the widely adopted self-energy expression reflecting this normal state gap, which has appeared in interpretations of photoemission and in othe...
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Veröffentlicht in: | Physical review. B, Condensed matter and materials physics Condensed matter and materials physics, 2012-10, Vol.86 (13), Article 134519 |
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Hauptverfasser: | , |
Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | In this paper we deduce transport properties in the presence of a pseudogap associated with precursor superconductivity. Our theoretical analysis is based on the widely adopted self-energy expression reflecting this normal state gap, which has appeared in interpretations of photoemission and in other experiments. Thus, it should be generally applicable. Here we address THz conductivity [sigma]( omega ) = [sigma] sub(1) ( omega ) + i[sigma] sub(2) ( omega ) measurements in the underdoped high-temperature superconductors and arrive at reasonable agreement between theory and recent experiment for both [sigma] sub(1) and [sigma] sub(2) above and below T sub(c). |
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ISSN: | 1098-0121 1550-235X |
DOI: | 10.1103/PhysRevB.86.134519 |