| HAL : in2p3-00597384, version 1 |
| arXiv : 1104.2617 |
| DOI : 10.1103/PhysRevLett.106.197002 |
| Fiche détaillée | Récupérer au format |
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| Physical Review Letters 106 (2011) 197002 |
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| Two-Fermi-surface superconducting state and a nodal d-wave gap in the electron-doped Sm(1.85)Ce(0.15)CuO(4-d) cuprate superconductor |
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| A. F. Santander-Syro1, 2Masaki IkedaTeppei YoshidaAtsushi FujimoriKyoko IshizakaMario OkawaShik ShinRichard L. GreeneNicole Bontemps2 |
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| (2011) |
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| We report on laser-excited angle-resolved photoemission spectroscopy (ARPES) in the electron-doped cuprate Sm(1.85)Ce(0.15)CuO(4-d). The data show the existence of a nodal hole-pocket Fermi-surface both in the normal and superconducting states. We prove that its origin is long-range antiferromagnetism by an analysis of the coherence factors in the main and folded bands. This coexistence of long-range antiferromagnetism and superconductivity implies that electron-doped cuprates are two-Fermi-surface superconductors. The measured superconducting gap in the nodal hole-pocket is compatible with a d-wave symmetry. |
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| 1 : | CSNSM - Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse |
| 2 : | LPEM - Laboratoire de Physique et d'Etude des Matériaux |
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| CSNSM PS2 |
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| Thème(s) | : | Physique/Matière Condensée/Supraconductivité Physique/Matière Condensée/Science des matériaux Physique/Matière Condensée/Electrons fortement corrélés |
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| Lien vers le texte intégral : |
| in2p3-00597384, version 1 | |
| http://hal.in2p3.fr/in2p3-00597384 | |
| oai:hal.in2p3.fr:in2p3-00597384 | |
| Contributeur : Christine Hadrossek | |
| Soumis le : Mardi 31 Mai 2011, 16:58:13 | |
| Dernière modification le : Mardi 8 Janvier 2013, 16:19:44 | |