Spin dynamics of the electron-doped high-T(c) superconducting cuprates

We show that a basic difference between the electron- and hole-doped cuprates is their proximity to two different quantum critical points in a 2D free fermion system on a square lattice and that the spin dynamics observed recently for the first time in the electron-doped Nd2-xCexCuO4, very different...

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Bibliographic Details
Published in:Physical review letters 2004-06, Vol.92 (24), p.247003-247003
Main Authors: Onufrieva, F, Pfeuty, P
Format: Article
Language:English
Online Access:Get full text
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Summary:We show that a basic difference between the electron- and hole-doped cuprates is their proximity to two different quantum critical points in a 2D free fermion system on a square lattice and that the spin dynamics observed recently for the first time in the electron-doped Nd2-xCexCuO4, very different from that in the hole-doped cuprates, can be understood as a consequence of this effect.
ISSN:0031-9007