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Current‐induced control of the electron–nuclear spin system in semiconductors on a micrometer scale
Author(s) -
Chen Yuansen,
Kim Jungtaek,
Puls Joachim,
Henneberger Fritz,
Bacher Gerd
Publication year - 2014
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.201350255
Subject(s) - spins , semiconductor , micrometer , electron , spin (aerodynamics) , hyperfine structure , quantum dot , physics , materials science , optoelectronics , nuclear magnetic resonance , atomic physics , condensed matter physics , optics , nuclear physics , thermodynamics
The ability of using onchip microcoils to control the electron–nuclear spin system in semiconductors is demonstrated. Electrically generated magnetic fields of several tens of mT can be obtained on a micrometer length scale, which are switchable on a sub‐ns time scale due to the low complex coil impedance. This allows one to electrically (i) manipulate the nuclear spins by means of nuclear magnetic resonance in n‐GaAs and (ii) control the hyperfine flip‐flop rate in CdSe/ZnSe quantum dots.