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Applied Physics Letters / Volume 96 / Issue 15 / STRUCTURAL, MECHANICAL, THERMODYNAMIC, AND OPTICAL PROPERTIES OF CONDENSED MATTER

Appl. Phys. Lett. 96, 151908 (2010); http://dx.doi.org/10.1063/1.3373591 (3 pages)

Electron-nuclear spin control in charged semiconductor quantum dots by electrical currents through micro-coils

Jungtaek Kim1, J. Puls1, Y. S. Chen2, G. Bacher2, and F. Henneberger1

1Institut für Physik, Humboldt-Universität zu Berlin, D-12489 Berlin, Germany
2Werkstoffe der Elektrotechnik and CeNIDE, Universität Duisburg/Essen, D-47048 Duisburg, Germany

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(Received 22 January 2010; accepted 5 March 2010; published online 14 April 2010)

We have fabricated micrometer-sized single-turn coils on top of charged CdSe/ZnSe quantum dot heterostructures by lithographical techniques. Current injection creates magnetic fields in the some 10 mT range, strong enough to modulate the hyperfine interaction. The very low coil inductance allows for generation of fast field transients. We demonstrate local control of the resident electron spin as well as read-out of the nuclear spin state on the 10 ns time scale by electrical current pulses.

© 2010 American Institute of Physics

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KEYWORDS and PACS

Keywords

cadmium compounds, charge injection, hyperfine interactions, II-VI semiconductors, lithography, microfabrication, semiconductor quantum dots, transients, zinc compounds

PACS

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3373591

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
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