Date of Award
Fall 1985
Document Type
Thesis - Restricted
Degree Name
Master of Science (MS)
Department
Physics
First Advisor
Browning, Lary M.
Second Advisor
Mendelson, Kenneth S.
Third Advisor
Pedrotti, Frank L.
Abstract
The goal of this thesis is to obtain expressions relating the deformation potentials of the valence band, with those of the acceptor 's first and second excited states, including the cubic terms. Unstressed acceptor states are taken from Baldereschi and Lipari(1970) and symmetry adapted for the site symmetry of Germanium. The symmetry acceptor states are perturbed by a stress Hamiltonian and expressions relating the deformation potentials of the Bloch functions are related to the deformation potentials of the acceptor excited states. These relations explain why some acceptor states split in different ways than other acceptor states or Bloch states of the valence band. This splitting is due to the symmetry of the pure crystal being reduced by a uniaxial stress, and the splitting is observed experimentally. So far no theory has been able to explain this peculiar behavior of the acceptor states splitting under uniaxial stress.
Recommended Citation
Berger, Richard, "Cubic Effects on the Deformation Potentials of Acceptor States in Germanium" (1985). Master's Theses (1922-2009) Access restricted to Marquette Campus. 2207.
https://epublications.marquette.edu/theses/2207