Publication
Physical Review Letters
Paper

Effects of pressure on the electronic and optical properties of a polymorph of Germanium and of amorphous Germanium

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Abstract

It has been observed experimentally that the density dependence of the energy gap of a tetrahedrally coordinated amorphous semiconductor is generally smaller than that of its crystalline form. Using the Ge 3 or ST12 structure as a simple model of amorphous Ge (a-Ge), the electronic structure of this simple model of a-Ge, calculated using the pseudopotential method, is obtained at several densities. The resulting density dependence is found to be small. © 1973 The American Physical Society.

Date

21 May 1973

Publication

Physical Review Letters

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