Abstract
Abstract The longitudinal optic (LO) phonon susceptibility is evaluated for a semiconductor subjected to a steady magnetic field. Coupling of the lattice vibrations and free electrons is described by a Frohlich interaction, and electron correlation effects are treated within the random phase approximation (RPA). The susceptibility displays resonances, as a function of frequency for a fixed wavevector perpendicular to the applied field, at frequencies that correspond to excitation of coupled LO phonon-plasmon–cyclotron modes. The spectrum and corresponding spectral weights for inelastic neutron scattering are evaluated for a model of n-type GaAs.
Full Text 
Sign-in/Register to access full text options
Sign-in/Register to access full text options 
Paper version not known
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
