2021年3月
Nucleation of Ga droplets self-assembly on GaAs(111)A substrates
SCIENTIFIC REPORTS
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- 巻
- 11
- 号
- 1
- 開始ページ
- 6833
- 終了ページ
- 6833
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1038/s41598-021-86339-3
- 出版者・発行元
- NATURE RESEARCH
We investigated the nucleation of Ga droplets on singular GaAs(111)A substrates in the view of their use as the seeds for the self-assembled droplet epitaxial quantum dots. A small critical cluster size of 1-2 atoms characterizes the droplet nucleation. Low values of the Hopkins-Skellam index (as low as 0.35) demonstrate a high degree of a spatial order of the droplet ensemble. Around 350. C the droplet size distribution becomes bimodal. We attribute this observation to the interplay between the local environment and the limitation to the adatom surface diffusion introduced by the Ehrlich-Schwobel barrier at the terrace edges.
- リンク情報
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- DOI
- https://doi.org/10.1038/s41598-021-86339-3
- PubMed
- https://www.ncbi.nlm.nih.gov/pubmed/33767304
- PubMed Central
- https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7994575
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000635698500020&DestApp=WOS_CPL
- ID情報
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- DOI : 10.1038/s41598-021-86339-3
- ISSN : 2045-2322
- PubMed ID : 33767304
- PubMed Central 記事ID : PMC7994575
- Web of Science ID : WOS:000635698500020