Hyperfine-mediated gate-driven electron spin resonance.

Hyperfine-mediated gate-driven electron spin resonance.

An all-electrical spin resonance effect in a GaAs few-electron double quantum dot is investigated experimentally and theoretically. The magnetic field dependence and absence of associated Rabi oscillations are consistent with a novel hyperfine mechanism. The resonant frequency is sensitive to the in...

Disgrifiad llawn

Manylion Llyfryddiaeth
Prif Awduron: Laird, E, Barthel, C, Rashba, E, Marcus, C, Hanson, M, Gossard, A
Fformat: Journal article
Iaith:English
Cyhoeddwyd: 2007
Disgrifiad
Crynodeb:An all-electrical spin resonance effect in a GaAs few-electron double quantum dot is investigated experimentally and theoretically. The magnetic field dependence and absence of associated Rabi oscillations are consistent with a novel hyperfine mechanism. The resonant frequency is sensitive to the instantaneous hyperfine effective field, and the effect can be used to detect and create sizable nuclear polarizations. A device incorporating a micromagnet exhibits a magnetic field difference between dots, allowing electrons in either dot to be addressed selectively.

Eitemau Tebyg