Magnetic collective mode dispersion in high-temperature superconductors

2000/10/19 by M. R. Norman · 3 citations
Mathematics · Physics and Astronomy · #Advanced Condensed Matter Physics #Condensed matter physics #Curvature #Dispersion (optics) #Ferromagnetism #Interpretation (philosophy) #Magnetic properties of thin films #Magnon #Mathematics #Mode (computer interface) #Neutron scattering #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #Scattering #Sign (mathematics) #Superconductivity #Wave vector #cond-mat.supr-con

paper · pdf · doi:10.1103/physrevb.63.092509

published as Phys. Rev. B 63, 092509 (2001) · 3 pages, revtex, 4 encapsulated postscript figures

arxiv created 2000/10/19 · openalex publication_date 2001/02/13 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

Recent neutron-scattering experiments in the superconducting state of YBa₂Cu₃O_6+x have been interpreted in terms of a magnetic collective mode whose dispersion relative to the commensurate wave vector has a curvature opposite in sign to a conventional magnon dispersion. The purpose of this article is to demonstrate that simple linear-response calculations are in support of a collective-mode interpretation, and to explain why the dispersion has the curvature it does.

Citations

• A Relation between the Resonance Neutron Peak and ARPES Data in Cuprates

Cited by

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• Spin anisotropy of the magnetic excitations in the normal and superconducting states of optimally doped YBa2Cu3O6.9studied by polarized neutron spectroscopy