Lattice dynamics of alkali halides, (LiF and NaCl)

  title={Lattice dynamics of alkali halides, (LiF and NaCl)},
  author={Manvir S. Kushwaha},
  journal={Il Nuovo Cimento B (1971-1996)},
SummaryA new 7-parameter bond-bending force model (BBFM) has been proposed to investigate the lattice dynamics of I–VII compounds having NaCl structure. The total potential energy of the system incorporates three types of interactions: i) central ion-ion forces, ii) bond-bending forces and iii) long-range Coulombic interactions. The model parameters have been determined by making use of three elastic constants, four critical-point phonon frequencies and the lattice equilibrium condition. The… CONTINUE READING