Eremin I.; Morr D.; Chubukov A.; Bennemann K.; Norman M.
(2005)
We show that a new resonant magnetic excitation at incommensurate momenta, observed recently by inelastic neutron scattering experiments on YBa 2Cu3O6.85 and YBa2Cu 3O6.6, is a spin exciton. Its location in the Brillouin ...