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  Doping-Dependent Photon Scattering Resonance in the Model High-Temperature Superconductor HgBa2CuO4+δ Revealed by Raman Scattering and Optical Ellipsometry

Li, Y., Le Tacon, M., Matiks, Y., Boris, A. V., Loew, T., Lin, C. T., et al. (2013). Doping-Dependent Photon Scattering Resonance in the Model High-Temperature Superconductor HgBa2CuO4+δ Revealed by Raman Scattering and Optical Ellipsometry. Physical Review Letters, 111(18): 187001.

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 Creators:
Li, Y., Author
Le Tacon, M.1, Author           
Matiks, Y., Author
Boris, A. V.2, Author           
Loew, T.1, Author           
Lin, C. T.3, Author           
Chen, L.4, Author           
Chan, M. K., Author
Dorow, C., Author
Ji, L., Author
Barisic, N., Author
Zhao, X., Author
Greven, M., Author
Keimer, B.2, Author           
Affiliations:
1Solid State Spectroscopy, Max Planck Institute for Solid State Research, Max Planck Society, ou_persistent22              
2Department Solid State Spectroscopy (Bernhard Keimer), Max Planck Institute for Solid State Research, Max Planck Society, ou_3370480              
3Scientific Facility Crystal Growth (Masahiko Isobe), Max Planck Institute for Solid State Research, Max Planck Society, ou_3370496              
4Department Physical Chemistry of Solids (Joachim Maier), Max Planck Institute for Solid State Research, Max Planck Society, ou_3370483              

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 Abstract: We study the model high-temperature superconductor HgBa2CuO4+delta with electronic Raman scattering and optical ellipsometry over a wide doping range. The dependence of the resonant Raman cross section on the incident photon energy changes drastically as a function of doping, in a manner that corresponds to a rearrangement of the interband optical transitions seen with ellipsometry. This doping-dependent Raman resonance allows us to reconcile the apparent discrepancy between Raman and x-ray detection of magnetic fluctuations in superconducting cuprates. Intriguingly, the strongest variation occurs across the doping level where the antinodal superconducting gap appears to reach its maximum.

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Language(s): eng - English
 Dates: 2013
 Publication Status: Issued
 Pages: -
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 Table of Contents: -
 Rev. Type: Internal
 Identifiers: eDoc: 672388
ISI: 000326279400013
 Degree: -

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Title: Physical Review Letters
Source Genre: Journal
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Pages: - Volume / Issue: 111 (18) Sequence Number: 187001 Start / End Page: - Identifier: ISSN: 0031-9007