Phys. Rev. Lett. 70, 3490–3493 (1993)Polarized neutron determination of the magnetic excitations in YBa2Cu3O7Received 16 February 1993; published in the issue dated 31 May 1993 Polarization analysis has been used to identify the magnetic excitations in YBa2Cu3O7. The dominant feature in the spectra is a peak at the (π,π) reciprocal lattice position and centered at 41 meV. The behavior of the peak is shown to change dramatically at Tc, so that the magnetic excitations responsible for the peak must be strongly coupled to the superconductivity. Below an energy of about 35 meV, superconductivity suppresses the continuum scattering found in addition to the 41-meV peak. © 1993 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.70.3490
DOI:
10.1103/PhysRevLett.70.3490
PACS:
74.72.Bk, 61.12.Ex
|
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.