Universal magnetic excitation spectrum in cuprates

J. M. Tranquada, H. Woo, T. G. Perring, H. Goka, G. D. Gu, G. Xu, M. Fujita, K. Yamada

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

We have recently used inelastic neutron scattering to measure the magnetic excitation spectrum of La1.875Ba0.125CuO4 up to 200 meV. This particular cuprate is of interest because it exhibits static charge and spin stripe order. The observed spectrum is remarkably similar to that found in superconducting YBa2Cu3O6+x and La2-xSrxCuO4; the main differences are associated with the spin gap. We suggest that essentially all observed features of the magnetic scattering from cuprate superconductors can be described by a universal magnetic excitation spectrum multiplied by a spin gap function with a material-dependent spin-gap energy.

Original languageEnglish
Pages (from-to)511-515
Number of pages5
JournalJournal of Physics and Chemistry of Solids
Volume67
Issue number1-3
DOIs
Publication statusPublished - 2006 Jan

Keywords

  • A. Oxides
  • A. Superconductors
  • C. Neutron scattering
  • D. Magnetic properties

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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