Observation of d x 2 -y 2 -Like Superconducting Gap in an Electron-Doped High-Temperature Superconductor
- 23 February 2001
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 291 (5508) , 1517-1519
- https://doi.org/10.1126/science.1058021
Abstract
High-resolution angle-resolved photoemission spectroscopy of the electron-doped high-temperature superconductor Nd2-xCexCuO4 (x = 0.15, transition temperature T c = 22 K) has found the quasiparticle signature as well as the anisotropicd x2-y2 –like superconducting gap. The spectral line shape at the superconducting state shows a strong anisotropic nature of the many-body interaction. The result suggests that the electron-hole symmetry is present in the high-temperature superconductors.Keywords
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