Critical thickness of Ge / GaAs(001) epitaxial films

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Main Author: A. G. Rodríguez
Format: Artículo científico
Language:en
Published: Sociedad Mexicana de Ciencia y Tecnología de Superficies y Materiales A.C. 2003
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author A. G. Rodríguez
author_facet A. G. Rodríguez
contents Critical thickness of Ge / GaAs(001) epitaxial films A. G. Rodríguez A. Navarro Quezada G. Hernández Sosa M. A. Vidal H. Navarro Contreras Física, Astronomía y Matemáticas III critical thinks ray diffraction High resolution X Heterostructure IV Epitaxial single crystal films of Ge, with thickness from 0.2 to 2.4 µm, were grown on GaAs (001) by rf sputtering. Theselayers were characterized by High Resolution X-Ray Diffraction (HRXRD). Measured rocking curves show thatpseudomorphic samples with good structural quality can be obtained by this growth technique. Asymmetrical reflections(115) and (-1-15) are used to determine the in-plane and in-growth lattice parameters of the grown films. From thebehavior of these parameters and Ge diffraction peak broadening, with the layer thickness, an experimental value of 1.8µm is obtained for the critical thickness of Ge grown on GaAs (001) 2003 artículo científico 1665-3521 https://www.redalyc.org/articulo.oa?id=94216410 en http://www.redalyc.org/revista.oa?id=942 Superficies y vacío application/pdf Sociedad Mexicana de Ciencia y Tecnología de Superficies y Materiales A.C. Superficies y vacío (México) Num.4 Vol.16
format Artículo científico
id redalyc_94216410
institution Redalyc
language en
publishDate 2003
publisher Sociedad Mexicana de Ciencia y Tecnología de Superficies y Materiales A.C.
spellingShingle Critical thickness of Ge / GaAs(001) epitaxial films
A. G. Rodríguez
Física, Astronomía y Matemáticas
III
critical thinks
ray diffraction
High resolution X
Heterostructure IV
Critical thickness of Ge / GaAs(001) epitaxial films A. G. Rodríguez A. Navarro Quezada G. Hernández Sosa M. A. Vidal H. Navarro Contreras Física, Astronomía y Matemáticas III critical thinks ray diffraction High resolution X Heterostructure IV Epitaxial single crystal films of Ge, with thickness from 0.2 to 2.4 µm, were grown on GaAs (001) by rf sputtering. Theselayers were characterized by High Resolution X-Ray Diffraction (HRXRD). Measured rocking curves show thatpseudomorphic samples with good structural quality can be obtained by this growth technique. Asymmetrical reflections(115) and (-1-15) are used to determine the in-plane and in-growth lattice parameters of the grown films. From thebehavior of these parameters and Ge diffraction peak broadening, with the layer thickness, an experimental value of 1.8µm is obtained for the critical thickness of Ge grown on GaAs (001) 2003 artículo científico 1665-3521 https://www.redalyc.org/articulo.oa?id=94216410 en http://www.redalyc.org/revista.oa?id=942 Superficies y vacío application/pdf Sociedad Mexicana de Ciencia y Tecnología de Superficies y Materiales A.C. Superficies y vacío (México) Num.4 Vol.16
title Critical thickness of Ge / GaAs(001) epitaxial films
topic Física, Astronomía y Matemáticas
III
critical thinks
ray diffraction
High resolution X
Heterostructure IV
url https://www.redalyc.org/articulo.oa?id=94216410