Neutron Scattering Studies of Antiferromagnetic Correlations in
Cuprates
Abstract
Neutron scattering studies have provided important information about the
momentum and energy dependence of magnetic excitations in cuprate
superconductors. Of particular interest are the recent indications of
a universal magnetic excitation spectrum in hole-doped cuprates. That
starting point provides motivation for reviewing the antiferromagnetic
state of the parent insulators, and the destruction of the ordered state
by hole doping. The nature of spin correlations in stripe-ordered phases
is discussed, followed by a description of the doping and temperature
dependence of magnetic correlations in superconducting cuprates. After
describing the impact on the magnetic correlations of perturbations such
as an applied magnetic field or impurity substitution, a brief summary of
work on electron-doped cuprates is given. The chapter concludes with a
summary of experimental trends and a discussion of theoretical
perspectives.