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Journal articles
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
Abstract : 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.
http://hal.in2p3.fr/in2p3-00597384
Contributor : Christine Hadrossek <>
Submitted on : Tuesday, May 31, 2011 - 4:58:13 PM
Last modification on : Sunday, June 20, 2021 - 3:46:23 AM
Contributor : Christine Hadrossek <>
Submitted on : Tuesday, May 31, 2011 - 4:58:13 PM
Last modification on : Sunday, June 20, 2021 - 3:46:23 AM
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