Magnetic resonance in the spin excitation spectrum of electron-doped cuprate superconductors.
نویسندگان
چکیده
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 Pr0.88LaCe0.12CuO4-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 dx2-y2-wave superconductivity may coexist with an antiferromagnetic spin-density wave.
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عنوان ژورنال:
- Physical review letters
دوره 99 4 شماره
صفحات -
تاریخ انتشار 2007