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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/13817
Title: Evidence of a precursor superconducting phase at temperatures as high as 180 K in RBa2Cu3O7-δ (R=Y,Gd,Eu) superconducting crystals from infrared spectroscopy
Authors: Dubroka A.
Rössle M.
Kim K.W.
Malik, Vivek K.K.
Munzar D.
Basov D.N.
Schafgans A.A.
Moon S.J.
Lin C.T.
Haug D.
Hinkov V.
Keimer B.
Wolf T.
Storey J.G.
Tallon J.L.
Bernhard C.
Published in: Physical Review Letters
Abstract: We show that a multilayer analysis of the infrared c-axis response of RBa2Cu3O7-δ(R=Y,Gd,Eu) provides important new information about the anomalous normal-state properties of underdoped cuprate high temperature superconductors. In addition to competing correlations which give rise to a pseudogap that depletes the low-energy electronic states below T * Tc, it enables us to identify the onset of a precursor superconducting state below Tons>Tc. We map out the doping phase diagram of Tons which reaches a maximum of 180? K at strong underdoping and present magnetic field dependent data which confirm our conclusions. © 2011 American Physical Society.
Citation: Physical Review Letters (2011), 106(4): -
URI: https://doi.org/10.1103/PhysRevLett.106.047006
http://repository.iitr.ac.in/handle/123456789/13817
Issue Date: 2011
ISSN: 319007
Author Scopus IDs: 57205149218
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Author Affiliations: Dubroka, A., University of Fribourg, Department of Physics, Fribourg Center for Nanomaterials, Chemin du Musée 3, CH-1700 Fribourg, Switzerland
Rössle, M., University of Fribourg, Department of Physics, Fribourg Center for Nanomaterials, Chemin du Musée 3, CH-1700 Fribourg, Switzerland
Kim, K.W., University of Fribourg, Department of Physics, Fribourg Center for Nanomaterials, Chemin du Musée 3, CH-1700 Fribourg, Switzerland
Malik, V.K., University of Fribourg, Department of Physics, Fribourg Center for Nanomaterials, Chemin du Musée 3, CH-1700 Fribourg, Switzerland
Munzar, D., Department of Condensed Matter Physics, Faculty of Science, Masaryk University, Kotlářská 2, 61137 Brno, Czech Republic
Basov, D.N., Department of Physics, University of California, San Diego, San Diego, CA 92093, United States
Schafgans, A.A., Department of Physics, University of California, San Diego, San Diego, CA 92093, United States
Moon, S.J., Department of Physics, University of California, San Diego, San Diego, CA 92093, United States
Lin, C.T., Max-Planck-Institut für Festkörperforschung, Heisenbergstrasse 1, D-70569 Stuttgart, Germany
Haug, D., Max-Planck-Institut für Festkörperforschung, Heisenbergstrasse 1, D-70569 Stuttgart, Germany
Hinkov, V., Max-Planck-Institut für Festkörperforschung, Heisenbergstrasse 1, D-70569 Stuttgart, Germany
Keimer, B., Max-Planck-Institut für Festkörperforschung, Heisenbergstrasse 1, D-70569 Stuttgart, Germany
Wolf, T., Karlsruhe Institute of Technology, Institut für Festkörperphysik, D-76021 Karlsruhe, Germany
Storey, J.G., MacDiarmid Institute, Industrial Research Ltd., P.O. Box 31310, Lower Hutt, New Zealand
Tallon, J.L., MacDiarmid Institute, Industrial Research Ltd., P.O. Box 31310, Lower Hutt, New Zealand
Bernhard, C., University of Fribourg, Department of Physics, Fribourg Center for Nanomaterials, Chemin du Musée 3, CH-1700 Fribourg, Switzerland
Corresponding Author: Dubroka, A.; University of Fribourg, Department of Physics, Fribourg Center for Nanomaterials, Chemin du Musée 3, CH-1700 Fribourg, Switzerland
Appears in Collections:Journal Publications [PH]

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