Shape induced anisotropic elastic relaxation in InP/In0.48Ga0.52P quantum dots

Autor:	D. Grigoriev, William Ted Masselink, T. Panzner, Martin Schmidbauer, Peter Schäfer, Fariba Hatami, Rolf Köhler, Michael Hanke, H. Raidt
Rok vydání:	2002
Předmět:	Physics Diffuse scattering Field (physics) Condensed matter physics Quantum dot Relaxation (NMR) Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Condensed Matter Physics Anisotropy Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials
Zdroj:	Physica E: Low-dimensional Systems and Nanostructures. 13:1139-1142
ISSN:	1386-9477
DOI:	10.1016/s1386-9477(02)00321-1
Popis:	We report on free-standing InP quantum dots grown on (0 0 1) InGaP/GaAs which exhibit a pronounced size anisotropy with respect to the [ 1 1 0 ] and [ 1 1 0 ] directions. X-ray diffuse scattering together with respective kinematical simulations using elasticity theory makes it possible to determine with high accuracy the geometric aspect ratios of island height and island base widths. The influence of these ratios on the strain field inside the quantum dots will be discussed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d6b857e014c77f2a26eeace3cb2a7227 https://doi.org/10.1016/s1386-9477(02)00321-1 Zobrazit plný text záznamu Full Text from ScienceDirect