PMID: 11909382Mar 23, 2002Paper

Nonmonotonic d(x(2)-y(2)) superconducting order parameter in Nd2-xCexCuO4

Physical Review Letters
G BlumbergR L Greene

Abstract

Low energy polarized electronic Raman scattering of the electron-doped superconductor Nd2-x Ce x CuO4 ( x = 0.15, T(c) = 22 K) has revealed a nonmonotonic d(x(2)-y(2)) superconducting order parameter. It has a maximum gap of 4.4k(B)T(c) at Fermi surface intersections with an antiferromagnetic Brillouin zone (the "hot spots") and a smaller gap of 3.3k(B)T(c) at fermionic Brillouin zone boundaries. The gap enhancement in the vicinity of the hot spots emphasizes the role of antiferromagnetic fluctuations and the similarity in the origin of superconductivity for electron- and hole-doped cuprates.

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Citations

Apr 11, 2009·Proceedings of the National Academy of Sciences of the United States of America·K TerashimaT Takahashi
Mar 10, 2011·Journal of Physics. Condensed Matter : an Institute of Physics Journal·F GiubileoA M Cucolo
Jan 17, 2017·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Marcin M Wysokiński, Jan Kaczmarczyk
Jan 27, 2010·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Cui-Ping ChenJian-Xin Li
Apr 12, 2006·Physical Review Letters·P Krotkov, Andrey V Chubukov
Nov 5, 2004·Physical Review Letters·B KyungA-M S Tremblay
May 7, 2003·Physical Review Letters·F VenturiniU Michelucci
Feb 9, 2005·Physical Review Letters·H G Luo, T Xiang
Jun 1, 2004·Physical Review Letters·A SnezhkoP Fournier

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