Orbital current order of the d-density-wave type has been postulated to explain the pseudogap in high temperature superconductors. We have performed neutron scattering experiments to search for this order and show here the results obtained on an YBa2Cu3O6.45 sample using the best neutron spectrometers available. We argue that the data are consistent with a small, largely c-axis-directed moment, found below about 200 K.
|Physical Review B: Condensed Matter and Materials Physics
|Published - Apr 2004