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Hydrogen passivation of EL2 defects and H2*-like complex formation in gallium arsenide

Physical Review B, ISSN: 0163-1829, Vol: 51, Issue: 7, Page: 4172-4175
1995
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  • Citations
    13
    • Citation Indexes
      13

Article Description

A complex formed by one As antisite (AsGa), one As, and two H atoms is proposed, in GaAs, which is reminiscent of the H2* defect in crystalline Si and properly accounts for the hydrogen neutralization of the EL2 deep donor activity. It is noticeably stable, in agreement with experimental results. The geometry and electronic structure of this complex present interesting connections with those of the isolated As antisite which clarify the EL2 passivation mechanism. © 1995 The American Physical Society.

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