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
| Autor: | Santander-Syro, A. F., Ikeda, Masaki, Yoshida, Teppei, Fujimori, Atsushi, Ishizaka, Kyoko, Okawa, Mario, Shin, Shik, Greene, Richard L., Bontemps, Nicole |
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| Přispěvatelé: | CSNSM PS2, Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)-Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique et d'Etude des Matériaux (UMR 8213) (LPEM), Ecole Superieure de Physique et de Chimie Industrielles de la Ville de Paris (ESPCI Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2011 |
| Předmět: |
[PHYS.COND.CM-S]Physics [physics]/Condensed Matter [cond-mat]/Superconductivity [cond-mat.supr-con]
Superconductivity (cond-mat.supr-con) Condensed Matter - Materials Science Condensed Matter - Strongly Correlated Electrons Strongly Correlated Electrons (cond-mat.str-el) Condensed Matter - Superconductivity Condensed Matter::Superconductivity [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci] Materials Science (cond-mat.mtrl-sci) FOS: Physical sciences Condensed Matter::Strongly Correlated Electrons [PHYS.COND.CM-SCE]Physics [physics]/Condensed Matter [cond-mat]/Strongly Correlated Electrons [cond-mat.str-el] |
| Zdroj: | Physical Review Letters Physical Review Letters, American Physical Society, 2011, 106, pp.197002. ⟨10.1103/PhysRevLett.106.197002⟩ |
| ISSN: | 0031-9007 1079-7114 |
| DOI: | 10.48550/arxiv.1104.2617 |
| Popis: | 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. Comment: 4 pages, 3 figures, accepted to Phys. Rev. Lett |
| Databáze: | OpenAIRE |
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