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The mobility and the density of the 2DEG in Ni-treated (solid) and untreated (open) heterostructures as a function of temperature.
DLTS spectra of Ni-treated (solid) and untreated (open) heterostructures. The inset shows the RT spectra of both samples.
Summary of Hall and XPS measurement results for each processing step.
Summary of Arrhenius analysis of the DLTS data for the deep levels detected in untreated and Ni-treated heterostructures.
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