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arXiv · 1309.2338

Investigation of electron beam induced migration of hydrogen in Mg-doped GaN using Eu as a probe

Brandon Mitchell·Donghwa Lee·Dong-gun Lee·Atsushi Koizumi·Yasufumi Fujiwara·Volkmar Dierolf
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Abstract

We demonstrate the use of hydrogen induced changes in the emission of isoelectric Eu ions, in Mg-doped p-type GaN, as a powerful probe to study the dynamics of hydrogen movement under electron beam irradiation. We identify, experimentally, a two-step process in the dissociation of Mg-H complexes and propose, based on density functional theory, that the presence of minority carriers and resulting charge states of the hydrogen drives this process.

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Brandon Mitchell, Donghwa Lee, Dong-gun Lee, Atsushi Koizumi, Yasufumi Fujiwara, Volkmar Dierolf. 2013-09-09. Investigation of electron beam induced migration of hydrogen in Mg-doped GaN using Eu as a probe. https://doi.org/10.1103/physrevb.88.121202

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