Hyperfine-mediated gate-driven electron spin resonance.

Journal article

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.

Authors: Laird, E; Barthel, C; Rashba, E; Marcus, C; Hanson, M

• Publication status: Published
• Journal: Physical Review Letters
• Volume: 99
• Issue: 24
• Pages: 246601
• Publication date: 2007-12-01
• DOI: 10.1103/physrevlett.99.246601
• EISSN: 1079-7114
• ISSN: 0031-9007
• Language: English