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 25634630900 55377411700 24758795000 6701706410 7004222767 8922831800 26633039200 12805472100 23488907900 6701805953 7005405718 7201702157 9241500200 7006794821 16030481900 |
| 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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