Gap-function symmetry and spin dynamics in electron-doped cuprate superconductors

C. S. Liu; W. C. Wu

doi:10.1103/PhysRevB.76.014513

Gap-function symmetry and spin dynamics in electron-doped cuprate superconductors

C. S. Liu^*, W. C. Wu

^*Corresponding author for this work

Department of Physics

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

An antiferromagnetic (AF) spin fluctuation induced pairing model is proposed for the electron-doped cuprate superconductors. It suggests that, similar to the hole-doped side, the superconducting gap function is monotonic d x2 - y2 wave and explains why the observed gap function has a nonmonotonic d x2 - y2 -wave behavior when an AF order is taken into account. Dynamical spin susceptibility is calculated and shown to be in good agreement with the experiment. This gives a strong support to the proposed model.

Original language	English
Article number	014513
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	76
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevB.76.014513
Publication status	Published - 2007 Jul 19

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.76.014513

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abstract = "An antiferromagnetic (AF) spin fluctuation induced pairing model is proposed for the electron-doped cuprate superconductors. It suggests that, similar to the hole-doped side, the superconducting gap function is monotonic d x2 - y2 wave and explains why the observed gap function has a nonmonotonic d x2 - y2 -wave behavior when an AF order is taken into account. Dynamical spin susceptibility is calculated and shown to be in good agreement with the experiment. This gives a strong support to the proposed model.",

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AB - An antiferromagnetic (AF) spin fluctuation induced pairing model is proposed for the electron-doped cuprate superconductors. It suggests that, similar to the hole-doped side, the superconducting gap function is monotonic d x2 - y2 wave and explains why the observed gap function has a nonmonotonic d x2 - y2 -wave behavior when an AF order is taken into account. Dynamical spin susceptibility is calculated and shown to be in good agreement with the experiment. This gives a strong support to the proposed model.

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Gap-function symmetry and spin dynamics in electron-doped cuprate superconductors

Abstract

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