ON THE ORIGIN OF OVAL DEFECT WITH NUCLEUS ON EPILAYERS GROWN BY MOLECULAR BEAM EPITAXY.

被引:0
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作者
Nishikawa, Yasumi [1 ]
Kanamoto, Kyozo [1 ]
Tokuda, Yasunori [1 ]
Fujiwara, Kenzo [1 ]
Nakayama, Takashi [1 ]
机构
[1] Mitsubishi Electric Corp, Amagasaki, Jpn, Mitsubishi Electric Corp, Amagasaki, Jpn
关键词
MOLECULAR BEAM EPITAXY - SURFACES - Contamination;
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摘要
Surface imperfections, such as so-called oval defects, have been observed in GaAs layers grown by molecular-beam epitaxy (MBE). The authors have investigated one particular type of oval defects which has a macroscopic nucleus at the center. By careful cross-sectional observations using scanning electron microscopy (SEM) and a Nomarski optical microscope, they found a clear, convincing, independent evidence that the origin of this type defect is macroscopic surface contamination prior to MBE growth.
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页码:908 / 909
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