Inelastic Scattering Cross Section of Neutrons in Displacive Ferroelectrics

Abstract

The one phonon differential scattering cross section of neutrons in displacive ferroelectrics is studied by consdering higher order anharmonic terms in the Hamiltonian, using double time Green’s function technique. It is shown that the scattering cross section has Lorentzian shape. The width and shift in the frequency spectrum are temperature dependent. Temperature dependence of the differential scattering cross section is discussed.