PROMOTING ACCESS TO AFRICAN RESEARCH

Nigerian Journal of Physics

Log in or Register to get access to full text downloads.

Remember me or Register



Local field corrections in the lattice dynamics of chromium

IC Ndukwe

Abstract


s – d hybridizing effects constitute the major part of local field effects in transition metals. Therefore local field corrections to phonon frequencies in transition metals are taken to be mainly as a result of these hybridizing effects. This work extends the inclusion of local field corrections in the calculation of the phonon dispersion curves to the transition metal, chromium (Cr3+) using the formalism of lattice dynamics based on the transition metal model potential approach in the adiabatic and hatmonic approximations. The results obtained here have a good fit with experimental values.

Nigerian Journal of Physics Vol. 16(2) 2004: 86-96



http://dx.doi.org/10.4314/njphy.v16i2.38020
AJOL African Journals Online