Strain‐induced dimer adatom stacking fault structures of germanium on Si(111)‐(√3×√3)R30°:B observed by scanning tunneling microscopy
作者:
B. Müller,
O. Jusko,
G. J. Pietsch,
U. Köhler,
期刊:
Journal of Vacuum Science&Technology B: Microelectronics and Nanometer Structures Processing, Measurement, and Phenomena
(AIP Available online 1992)
卷期:
Volume 10,
issue 1
页码: 16-18
ISSN:1071-1023
年代: 1992
DOI:10.1116/1.586292
出版商: American Vacuum Society
关键词: GERMANIUM;SILICON;SURFACE RECONSTRUCTION;SCANNING TUNNELING MICROSCOPY;ANNEALING;BORON ADDITIONS;HETEROSTRUCTURES;INTERFACE STRUCTURE;EPITAXY;DIFFUSION;NUCLEATION;DANGLING BONDS;Ge;Si:B
数据来源: AIP
摘要:
The growth and the atomic structure of the Ge on the Si(111)‐((3)1/2×(3)1/2)R30° surface are investigated by scanning tunneling microscopy. The coexistence of the ((3)1/2×(3)1/2)R30° and thec(2×4) reconstruction at the Si‐substrate is discussed. Germanium on silicon, usually indistinguishable from the silicon is identified on the boron induced ((3)1/2×(3)1/2)R30° surface using the difference in reconstruction of the substrate and epitaxial material. The germanium deposit shows a dimer adatom stacking fault‐like structure while the substrate still remains ((3)1/2×(3)1/2)R30° reconstructed. A significant boron diffusion is only observed after annealing at 480 °C, which converts the island surface into a ((3)1/2×(3)1/2)R30° reconstruction.
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