Raman spectra of AℓN, cubic BN and BP

Abstract

Raman spectra of wurtzite AℓN and zincblende BN and BP were excited by a He-Ne laser (6328A). The long wavelength Raman lines determined are the following: (i) For Aℓ N A 1 ( TO) = E 1( TO) = 667 cm −1, A 1 ( LO) = E 1 ( LO) = 910 cm −1 and E 2 = 665 cm −1; (ii) For cubic BN TO = 1056 cm −1 and LO = 1304 cm −1; (iii) For BP only one line was observed at 829 cm −1. The ratio of LO to TO intensities is discussed briefly.