LARGE-SCALE SURFACE-STRUCTURE FORMED DURING GAAS (001) HOMOEPITAXY

被引:137
作者
ORME, C
JOHNSON, MD
SUDIJONO, JL
LEUNG, KT
ORR, BG
机构
[1] H. M. Randall Laboratory, University of Michigan, Ann Arbor
关键词
D O I
10.1063/1.111004
中图分类号
O59 [应用物理学];
学科分类号
摘要
Atomic force microscopy studies have been performed on GaAs (001) homoepitaxy films grown by molecular beam epitaxy. Multilayered features are seen to evolve when the growth conditions favor island nucleation. As the epilayer thickness is increased these features grow in all dimensions but the angle of inclination remains approximately constant at 10. The mounding does not occur on surfaces grown in step flow. We propose that the multilayered features are an unstable growth mode which relies on island nucleation and the presence of a step edge barrier.
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页码:860 / 862
页数:3
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