Antiferromagnetic fluctuations and d-wave superconductivity in electron-doped high-temperature superconductors

TitleAntiferromagnetic fluctuations and d-wave superconductivity in electron-doped high-temperature superconductors
Publication TypeJournal Article
Year of Publication2003
AuthorsKyung, B, Landry, JS, Tremblay, A-MS
JournalPhysical Review B
Volume68
Pagination174502/1-5
Date Published2003
Abstract

We show that, at weak to intermediate coupling, antiferromagnetic fluctuations enhance d-wave pairing correlations until, as one moves closer to half-filling, the antiferromagnetically induced pseudogap begins to suppress the tendency to superconductivity. The accuracy of our approach is gauged by detailed comparisons with quantum Monte Carlo simulations. The negative pressure dependence of T-c and the existence of photoemission hot spots in electron-doped cuprate superconductors find their natural explanation within this approach.

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