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Nucleation and growth of primary nanostructures in SrTiO(3) homoepitaxy
SrTiO(3) nanoislands on SrTiO(3) (001) in a diffusion-limited growth regime were studied using in situ scanning tunneling microscopy (STM). The STM images revealed two characteristic features of nucleation stages. First, the minimum lateral size of the one-unit-cell (uc)-high SrTiO(3) islands was 4 ...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer US
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4385118/ https://www.ncbi.nlm.nih.gov/pubmed/25852376 http://dx.doi.org/10.1186/s11671-015-0805-7 |
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author | Phark, Soo-hyon Chang, Young Jun |
author_facet | Phark, Soo-hyon Chang, Young Jun |
author_sort | Phark, Soo-hyon |
collection | PubMed |
description | SrTiO(3) nanoislands on SrTiO(3) (001) in a diffusion-limited growth regime were studied using in situ scanning tunneling microscopy (STM). The STM images revealed two characteristic features of nucleation stages. First, the minimum lateral size of the one-unit-cell (uc)-high SrTiO(3) islands was 4 × 4 uc(2). Second, one-dimensional SrTiO(3) islands of a 4 uc width grew along the crystal symmetry directions. These observations suggest that 4 × 4-uc(2) islands act as a minimum nucleation seed, and the addition of SrTiO(3) molecular species of the same width is the primary and dominant growth process in SrTiO(3) homoepitaxy. A close inspection of the surface of the substrate during the deposition process revealed possible connections between surface reconstruction and energetically favorable nucleation of SrTiO(3) islands. |
format | Online Article Text |
id | pubmed-4385118 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Springer US |
record_format | MEDLINE/PubMed |
spelling | pubmed-43851182015-04-07 Nucleation and growth of primary nanostructures in SrTiO(3) homoepitaxy Phark, Soo-hyon Chang, Young Jun Nanoscale Res Lett Nano Express SrTiO(3) nanoislands on SrTiO(3) (001) in a diffusion-limited growth regime were studied using in situ scanning tunneling microscopy (STM). The STM images revealed two characteristic features of nucleation stages. First, the minimum lateral size of the one-unit-cell (uc)-high SrTiO(3) islands was 4 × 4 uc(2). Second, one-dimensional SrTiO(3) islands of a 4 uc width grew along the crystal symmetry directions. These observations suggest that 4 × 4-uc(2) islands act as a minimum nucleation seed, and the addition of SrTiO(3) molecular species of the same width is the primary and dominant growth process in SrTiO(3) homoepitaxy. A close inspection of the surface of the substrate during the deposition process revealed possible connections between surface reconstruction and energetically favorable nucleation of SrTiO(3) islands. Springer US 2015-02-26 /pmc/articles/PMC4385118/ /pubmed/25852376 http://dx.doi.org/10.1186/s11671-015-0805-7 Text en © Phark and Chang; licensee Springer. 2015 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. |
spellingShingle | Nano Express Phark, Soo-hyon Chang, Young Jun Nucleation and growth of primary nanostructures in SrTiO(3) homoepitaxy |
title | Nucleation and growth of primary nanostructures in SrTiO(3) homoepitaxy |
title_full | Nucleation and growth of primary nanostructures in SrTiO(3) homoepitaxy |
title_fullStr | Nucleation and growth of primary nanostructures in SrTiO(3) homoepitaxy |
title_full_unstemmed | Nucleation and growth of primary nanostructures in SrTiO(3) homoepitaxy |
title_short | Nucleation and growth of primary nanostructures in SrTiO(3) homoepitaxy |
title_sort | nucleation and growth of primary nanostructures in srtio(3) homoepitaxy |
topic | Nano Express |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4385118/ https://www.ncbi.nlm.nih.gov/pubmed/25852376 http://dx.doi.org/10.1186/s11671-015-0805-7 |
work_keys_str_mv | AT pharksoohyon nucleationandgrowthofprimarynanostructuresinsrtio3homoepitaxy AT changyoungjun nucleationandgrowthofprimarynanostructuresinsrtio3homoepitaxy |