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Laterally aligned quantum rings: From one-dimensional chains to two-dimensional arrays

Wu, J; Wang, ZM; Holmes, K; Marega, E; Zhou, Z; Li, H; Mazur, YI; (2012) Laterally aligned quantum rings: From one-dimensional chains to two-dimensional arrays. APPLIED PHYSICS LETTERS , 100 (20) 10.1063/1.4719519.

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Abstract

We present the fabrication of ordered quantum rings by the conversion of partially capped quantum dots. Morphological transformation of quantum dots to quantum rings is demonstrated by partially capping self-assembled quantum dots. Quantum rings have been fabricated on high index surfaces by this growth technique. The lateral ordering of quantum rings is introduced by engineering the strain field of a multi-layer InGaAs superlattice template. By using high index surfaces, the one-dimensional ordering of quantum rings on GaAs (100) surface was observed to evolve into two-dimensional aligned quantum ring arrays. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4719519]

Type: Article
Title: Laterally aligned quantum rings: From one-dimensional chains to two-dimensional arrays
DOI: 10.1063/1.4719519
Additional information: article-number: 203117 researcherid-numbers: Marega Junior, Euclydes/D-5250-2012 Zhou, Zhihua/B-7290-2009 Optica e fotonica, Inct/I-2419-2013 Li, Handong/J-5225-2015 orcid-numbers: Zhou, Zhihua/0000-0001-5014-6946 unique-id: ISI:000304265000073
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
URI: http://discovery.ucl.ac.uk/id/eprint/1541456
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