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Structural evolution of GeMn/Ge superlattices grown by molecular beam epitaxy under different growth conditions
GeMn/Ge epitaxial 'superlattices' grown by molecular beam epitaxy with different growth conditions have been systematically investigated by transmission electron microscopy. It is revealed that periodic arrays of GeMn nanodots can be formed on Ge and GaAs substrates at low temperature (app...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer
2011
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3285769/ https://www.ncbi.nlm.nih.gov/pubmed/22151995 http://dx.doi.org/10.1186/1556-276X-6-624 |
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author | Wang, Ya Liao, Zhiming Xu, Hongyi Xiu, Faxian Kou, Xufeng Wang, Yong Wang, Kang L Drennan, John Zou, Jin |
author_facet | Wang, Ya Liao, Zhiming Xu, Hongyi Xiu, Faxian Kou, Xufeng Wang, Yong Wang, Kang L Drennan, John Zou, Jin |
author_sort | Wang, Ya |
collection | PubMed |
description | GeMn/Ge epitaxial 'superlattices' grown by molecular beam epitaxy with different growth conditions have been systematically investigated by transmission electron microscopy. It is revealed that periodic arrays of GeMn nanodots can be formed on Ge and GaAs substrates at low temperature (approximately 70°C) due to the matched lattice constants of Ge (5.656 Å) and GaAs (5.653 Å), while a periodic Ge/GeMn superlattice grown on Si showed disordered GeMn nanodots with a large amount of stacking faults, which can be explained by the fact that Ge and Si have a large lattice mismatch. Moreover, by varying growth conditions, the GeMn/Ge superlattices can be manipulated from having disordered GeMn nanodots to ordered coherent nanodots and then to ordered nanocolumns. PACS: 75.50.Pp; 61.72.-y; 66.30.Pa; 68.37.L. |
format | Online Article Text |
id | pubmed-3285769 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2011 |
publisher | Springer |
record_format | MEDLINE/PubMed |
spelling | pubmed-32857692012-02-24 Structural evolution of GeMn/Ge superlattices grown by molecular beam epitaxy under different growth conditions Wang, Ya Liao, Zhiming Xu, Hongyi Xiu, Faxian Kou, Xufeng Wang, Yong Wang, Kang L Drennan, John Zou, Jin Nanoscale Res Lett Nano Express GeMn/Ge epitaxial 'superlattices' grown by molecular beam epitaxy with different growth conditions have been systematically investigated by transmission electron microscopy. It is revealed that periodic arrays of GeMn nanodots can be formed on Ge and GaAs substrates at low temperature (approximately 70°C) due to the matched lattice constants of Ge (5.656 Å) and GaAs (5.653 Å), while a periodic Ge/GeMn superlattice grown on Si showed disordered GeMn nanodots with a large amount of stacking faults, which can be explained by the fact that Ge and Si have a large lattice mismatch. Moreover, by varying growth conditions, the GeMn/Ge superlattices can be manipulated from having disordered GeMn nanodots to ordered coherent nanodots and then to ordered nanocolumns. PACS: 75.50.Pp; 61.72.-y; 66.30.Pa; 68.37.L. Springer 2011-12-12 /pmc/articles/PMC3285769/ /pubmed/22151995 http://dx.doi.org/10.1186/1556-276X-6-624 Text en Copyright ©2011 Wang et al; licensee Springer. http://creativecommons.org/licenses/by/2.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Nano Express Wang, Ya Liao, Zhiming Xu, Hongyi Xiu, Faxian Kou, Xufeng Wang, Yong Wang, Kang L Drennan, John Zou, Jin Structural evolution of GeMn/Ge superlattices grown by molecular beam epitaxy under different growth conditions |
title | Structural evolution of GeMn/Ge superlattices grown by molecular beam epitaxy under different growth conditions |
title_full | Structural evolution of GeMn/Ge superlattices grown by molecular beam epitaxy under different growth conditions |
title_fullStr | Structural evolution of GeMn/Ge superlattices grown by molecular beam epitaxy under different growth conditions |
title_full_unstemmed | Structural evolution of GeMn/Ge superlattices grown by molecular beam epitaxy under different growth conditions |
title_short | Structural evolution of GeMn/Ge superlattices grown by molecular beam epitaxy under different growth conditions |
title_sort | structural evolution of gemn/ge superlattices grown by molecular beam epitaxy under different growth conditions |
topic | Nano Express |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3285769/ https://www.ncbi.nlm.nih.gov/pubmed/22151995 http://dx.doi.org/10.1186/1556-276X-6-624 |
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