کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9567503 1503718 2005 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Cross-sectional scanning tunneling microscopy observation of atomic arrangement in triple period-A type ordered AlInAs alloy
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Cross-sectional scanning tunneling microscopy observation of atomic arrangement in triple period-A type ordered AlInAs alloy
چکیده انگلیسی
Atomic arrangements in a triple-period (TP)-A type ordered AlInAs layer were investigated by a cross-sectional scanning tunneling microscope (XSTM) for the first time. The distributions of cation atoms in the ordered layer were distinguished using the tunneling spectroscopy method. The XSTM image on the cleaved surface of the ordered AlInAs layer revealed the presence of ragged short-range ordering domains comprising periodic structures aligned along the [112¯] direction on the whole surface, separated by three-fold periodicity along the [1 1 1] direction. This three-fold periodic structure comprises units of In-In-Al and/or In-Al-Al. That is, the TP-A type ordered AlInAs layer comprises two kinds of three-fold periodic planes; one is composed of two InAs-like planes and one AlAs-like plane, and the other is composed of one InAs-like plane and two AlAs-like planes. In addition, a local two-fold ordered structure having alternating InAs-like and AlAs-like planes can be observed in the STM image.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 241, Issues 1–2, 28 February 2005, Pages 9-13
نویسندگان
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