Commensurate and Incommensurate Spin Fluctuations in YBa_2Cu_3O_{6+y}

K. -K. Voo, W. C. Wu

We present an interpretation of the recent neutron data on the commensurate and incommensurate spin fluctuations found in YBa_2d$Cu_3O_{6+y} based on a special configuration of the…