1990
DOI: 10.1063/1.346904
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Native defects in the AlxGa1−xSb alloy semiconductor

Abstract: Defect concentrations in AlxGa1−xSb which is in equilibrium with a liquid phase are calculated. When the liquid phase is Ga rich, a Ga antisite (Ga2−Sb) or an Al antisite (Al2−Sb) is dominant, and the concentrations of vacancies are much smaller than the antisite concentrations. Ga2−Sb is dominant in GaSb equilibrated with a Sb-rich solution, but the concentration of Sb antisites comes close to that of Ga2−Sb as temperature is lowered. For x larger than 0.6, a group-III vacancy is the predominant defect in the… Show more

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Cited by 58 publications
(31 citation statements)
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“…The most widely accepted model suggests that the native defect responsible for the residual p-type behavior is a Ga vacancy -Ga antisite (V Ga Ga Sb ) double-defect, proposed first by Reid and collaborators [Reid, (1966)]. This model is supported by thermodynamic investigations [Ichimura, (1990)]. The double defect was called into question after it was found to have tetrahedral electronic symmetry through Zeeman experiments [Ruhle, (1975)].…”
Section: Instrinsic Gasb Including Gasb Grown Via the Czochralski Tementioning
confidence: 71%
See 1 more Smart Citation
“…The most widely accepted model suggests that the native defect responsible for the residual p-type behavior is a Ga vacancy -Ga antisite (V Ga Ga Sb ) double-defect, proposed first by Reid and collaborators [Reid, (1966)]. This model is supported by thermodynamic investigations [Ichimura, (1990)]. The double defect was called into question after it was found to have tetrahedral electronic symmetry through Zeeman experiments [Ruhle, (1975)].…”
Section: Instrinsic Gasb Including Gasb Grown Via the Czochralski Tementioning
confidence: 71%
“…A buffer layer was first grown on the substrate using cells of Ga and Sb of natural isotopic composition. Enriched layers were grown using cells of enriched 69 Ga, 71 Ga, 121 Sb and 123 Sb. On top of the enriched layers, a natural composition cap of GaSb was grown.…”
Section: Equation 2-33mentioning
confidence: 99%
“…4) due to native defects [20,21]. These p−type native defects include Ga antisite defect (Ga Sb ) [22], Ga vacancy (V Ga ) [23], and complex defect composed of a V Ga and a Ga Sb [24]. Ga antisite is believed to be the main defect with concentration increasing with Ga−rich growth condi− tions.…”
Section: Resultsmentioning
confidence: 99%
“…Por otra parte, las proporciones de Ga y Sb se encuentran lejos de la estequiometría notándose una mayor abundancia de Ga respecto al Sb que se ha detectado también en las muestras puras. Esto podría explicar la concentración anómalamente alta de huecos en el GaSb puro bien conocida en la literatura y que se encuentra entorno a 10 17 cm -3 y que se asocia fundamentalmente a antisitios de Ga que ocupan posiciones de Sb (14).…”
Section: Estudio De La Superficie Mediante Meb-edaxunclassified