Non-extrinsic conduction in semi-insulating gallium arsenide

The electrical properties of semi-insulating n-type gallium arsenide single crystals are reported. Two independent pieces of evidence show that conduction is non-extrinsic over most of the temperature range studied. One dominant level is situated approximately 0.40 eV from the conduction band. A dee...

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Bibliographic Details
Published in:Solid state communications 1976-01, Vol.20 (1), p.61-63
Main Authors: Ashby, A., Roberts, G.G., Ashen, D.J., Mullin, J.B.
Format: Article
Language:English
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Summary:The electrical properties of semi-insulating n-type gallium arsenide single crystals are reported. Two independent pieces of evidence show that conduction is non-extrinsic over most of the temperature range studied. One dominant level is situated approximately 0.40 eV from the conduction band. A deeper level at 0.98 eV is attributed to the chromium impurity in the crystals. Sont rapporteés les propriétés électriques des cristaux uniques demi-isolants de l'arséniure de gallium du type ‘n’ Deux morceaux d'évidence indépendants montrent que la conduction est non-extrinsèque pour la plupart de la gamme de température étudieé. Un niveau dominant se situe à 0.40 eV approximativement de la bande de conduction. On attribue un niveau plus bas à 0.98 eV à l'impureté causeé par du chrome dans les cristaux.
ISSN:0038-1098
1879-2766
DOI:10.1016/0038-1098(76)91699-9