Single quantum dot pairs with controllable interdot coupling

Autor:	M. K. Welsch, Laurens W. Molenkamp, Alfred Forchel, S. V. Zaitsev, Gerd Bacher, C. R. Becker, H. Schömig
Rok vydání:	2003
Předmět:	Coupling Photoluminescence Condensed matter physics Quantum dot Chemistry Heterojunction Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Condensed Matter Physics Polarization (waves) Cadmium telluride photovoltaics Electronic Optical and Magnetic Materials Ion Magnetic field
Zdroj:	physica status solidi (b). 238:313-316
ISSN:	1521-3951 0370-1972
DOI:	10.1002/pssb.200303054
Popis:	We report on a new approach for preparing single pairs of quantum dots with controllable interdot coupling. Starting from a double quantum well heterostructure, a selective intermixing technique was applied to define pairs of vertically stacked single quantum dots. The incorporation of Mn 2+ ions in only one of the dots results in strongly different effective g-factors of the dots, enabling us to control the interdot coupling simply by applying an external magnetic field.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::35c85e769e97ceb4fe008195345b5cca https://doi.org/10.1002/pssb.200303054 Zobrazit plný text záznamu Plný text