Resonance mode in B1g Raman scattering: A way to distinguish between spin-fluctuation and phonon-mediated d-wave superconductivity

A. V. Chubukov; T. P. Devereaux; M. V. Klein

doi:10.1103/PhysRevB.73.094512

Resonance mode in B1g Raman scattering: A way to distinguish between spin-fluctuation and phonon-mediated d-wave superconductivity

A. V. Chubukov, T. P. Devereaux, M. V. Klein

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Abstract

We argue that Raman scattering in B1g symmetry allows one to distinguish between phonon-mediated and magnetically mediated d -wave superconductivity. In spin-mediated superconductors, B1g Raman intensity develops a resonance at a frequency Ωres <2 Δmax, whose origin is similar to a neutron resonance. In phonon-mediated d -wave superconductors, such a resonance does not develop. Several extensions of the argument are presented.

Original language	English (US)
Article number	094512
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	73
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevB.73.094512
State	Published - 2006
Externally published	Yes

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10.1103/PhysRevB.73.094512

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abstract = "We argue that Raman scattering in B1g symmetry allows one to distinguish between phonon-mediated and magnetically mediated d -wave superconductivity. In spin-mediated superconductors, B1g Raman intensity develops a resonance at a frequency Ωres <2 Δmax, whose origin is similar to a neutron resonance. In phonon-mediated d -wave superconductors, such a resonance does not develop. Several extensions of the argument are presented.",

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AU - Klein, M. V.

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AB - We argue that Raman scattering in B1g symmetry allows one to distinguish between phonon-mediated and magnetically mediated d -wave superconductivity. In spin-mediated superconductors, B1g Raman intensity develops a resonance at a frequency Ωres <2 Δmax, whose origin is similar to a neutron resonance. In phonon-mediated d -wave superconductors, such a resonance does not develop. Several extensions of the argument are presented.

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Resonance mode in B1g Raman scattering: A way to distinguish between spin-fluctuation and phonon-mediated d-wave superconductivity

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