Spin Excitations in Pure and Zn-Substituted YBa2Cu3O6+x

  • B. Keimer
Part of the Springer Series in Solid-State Sciences book series (SSSOL, volume 125)


The effects of varying the hole concentration and the concentration of nonmagnetic (Zn) impurities on the spin excitation spectra of YBa2Cu3O6+x are compared and contrasted. With decreasing hole concentration, the magnetic resonance peak observed below Tc for x = 1 is shifted to lower energies, but remains sharp and continues to set in at Tc. By contrast, a minute concentration (0.5%) of nonmagnetic impurities broadens the spectrum dramatically. The broadened spectral distribution persists up to temperatures significantly higher than Tc.


Resonance Peak Hole Concentration Spectral Weight Spin Excitation Dynamical Susceptibility 
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© Springer-Verlag Berlin Heidelberg 1999

Authors and Affiliations

  • B. Keimer
    • 1
  1. 1.Department of PhysicsPrinceton UniversityPrincetonUSA

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