ISSN:
1089-7550
Source:
AIP Digital Archive
Topics:
Physics
Notes:
Thermal emission of electrons from resonant DX levels introduced by Te in AlGaAs was studied by means of time dependent Hall effect measurements. The levels were filled by applying hydrostatic pressure. Using an original method to analyze the obtained data, up to eight discrete components of the electron emission were clearly separated. This result gives evidence for a large cation displacement, predicted by Chadi and Chang [Phys. Rev. B 39, 10063 (1989)] in the case of group-VI DX center. Moreover, we observed the pressure dependence of barriers for electron emission from Te-related DX states.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.353068