Volume 217, Issue 3 1900425
Original Paper

Effects of Bi Irradiation on the Molecular Beam Epitaxy Growth of GaSb on Ge (111) Vicinal Substrates

Yasutomo Kajikawa

Corresponding Author

Yasutomo Kajikawa

Interdisciplinary Faculty of Science and Engineering, Shimane University, Matsue, 690-8504 Japan

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Makoto Nishigaichi

Makoto Nishigaichi

Interdisciplinary Faculty of Science and Engineering, Shimane University, Matsue, 690-8504 Japan

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Masahiro Inoue

Masahiro Inoue

Interdisciplinary Faculty of Science and Engineering, Shimane University, Matsue, 690-8504 Japan

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Mitsunori Kayano

Mitsunori Kayano

Interdisciplinary Faculty of Science and Engineering, Shimane University, Matsue, 690-8504 Japan

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First published: 13 July 2019
Citations: 1

Abstract

The growth of GaSb on Ge (111) vicinal substrates is performed by molecular beam epitaxy with Bi irradiation previous to and during the growth. The effects of the Bi irradiation on the surface morphology and on the crystallinity are investigated using atomic force microscopy and X-ray diffraction, respectively. It is shown that Bi works as a surfactant, which suppresses the generation of rotational twins in the GaSb layer.

Conflict of Interest

The authors declare no conflict of interest.

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