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The Chemical and Isoconcentration Diffusion of Zn in AlSb
Author(s) -
Showan S. R.,
Shaw D.
Publication year - 1969
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.19690320112
Subject(s) - diffusion , quenching (fluorescence) , solubility , acceptor , chemistry , zinc , ionization , analytical chemistry (journal) , atmospheric temperature range , inorganic chemistry , materials science , thermodynamics , condensed matter physics , ion , fluorescence , optics , organic chemistry , physics
The chemical diffusion of Zn in AlSb has been investigated as a function of temperature in the range 650 to 933 °C and as a function of Zn surface concentration. The diffusion coefficient is found to be concentration‐dependent and shows a behaviour similar to that observed in GaAs, GaP, and InP. Isoconcentration diffusion of Zn at 933 °C in AlSb is found to be strongly concentration‐dependent. Quenching of Zn‐diffused samples shows that the substitutional Zn is a single‐level acceptor which is completely ionized at the diffusion temperature. It is concluded that the Longini model provides a satisfactory interpretation of the diffusion processes. Substitutional Zn in AlSb is also found to show retrograde solubility.