The resonance peak in the electron-doped cuprate superconductors

Abstract

We study the emergence of a magnetic resonance in the superconducting state of the electron-doped cuprate superconductors. We show that the recently observed resonance peak in the electron-doped superconductor Pr${}_{0.88}$LaCe${}_{0.12}$CuO${}_{4-\delta }$ is consistent with an overdamped spin exciton located near the particle-hole continuum. We present predictions for the magnetic-field dependence of the resonance mode as well as its temperature evolution in those parts of the phase diagram where $d_{x^2-y^2}$-wave superconductivity may coexist with an antiferromagnetic spin-density wave.

5 Pages, 4 Figures

References in corpus (1)

• Resonant magnetic excitations at high energy in superconducting $\mathbf{YB}{\mathbf{a}}_2\mathbf{C}{\mathbf{u}}_3{\mathbf{O}}_{6.85}$

Cited by in corpus (1)

• Doping and energy evolution of spin dynamics in the electron-doped cuprate superconductor Pr${}_{0.88}$LaCe${}_{0.12}$CuO${}_{4-\delta }$