Raman Scattering of Gas-Evaporated Ge with a Structure Other Than the Diamond Lattice

Abstract
Germanium particles have been prepared by evaporation in Ar gas. We have found Ge with a structure other than the diamond lattice in these samples by Raman scattering. The frequencies of Raman lines due to Ge with the nondiamond structure agree well with those of phonons at the X-point in Ge with the diamond structure.