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Spatial distribution of vacancy defects in GaAs : Te wafers studied by positron annihilation

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1997

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Trans Tech Publications Ltd
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Abstract

The radial vacancy distribution along a LEC-GaAs:Te wafer with an average free carrier concentration n = 1.5 x 10(18) cm(-3) was studied by means of positron lifetime spectroscopy. An M-shaped radial distribution of vacancy-like defects, most probably Te(As)V(Ga)(-), was observed.

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© Trans Tech Publications Ltd. International Conference on Positron Annihilation (ICPA-11) (11. 1997. Kansas City, Missouri, USA).

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