The Raman spectrum of gallium phosphide

R.S. Krishnan , N. Krishnamurthy

The first and second-order Raman spectra of gallium phosphide recorded recently by Russell and Hobden using a He-Ne laser source, are discussed in the light of current theories on the dynamics of crystal lattices. The observed spectra of GaP is examined in detail with a calculation of the phonon frequencies from the critical points Γ, L and X, using the Raman supercell modes and their frequency expressions as given by Ramanathan for ZnS lattice. Satisfactory explanations have been given for the observed second-order frequencies in the case of GaP.

Mots clés: lattice dynamics; gallium compounds; Raman spectra

Domaines: Articles anciens

R.S. Krishnan, N. Krishnamurthy. The Raman spectrum of gallium phosphide. Journal de Physique, 1965, 26 (11), pp.630-633. ⟨10.1051/jphys:019650026011063000⟩. ⟨jpa-00206050⟩