Final published version
Research output: Contribution to Journal/Magazine › Journal article
Research output: Contribution to Journal/Magazine › Journal article
}
TY - JOUR
T1 - A new mechanism of electric dipole spin resonance
T2 - hyperfine coupling in quantum dots
AU - Laird, E A
AU - Barthel, C
AU - Rashba, E I
AU - Marcus, C M
AU - Hanson, M P
AU - Gossard, A C
PY - 2009/5/19
Y1 - 2009/5/19
N2 - A recently discovered mechanism of electric dipole spin resonance, mediated by the hyperfine interaction, is investigated experimentally and theoretically. The effect is studied using a spin-selective transition in a GaAs double quantum dot. The resonant frequency is sensitive to the instantaneous hyperfine effective field, revealing a nuclear polarization created by driving the resonance. A device incorporating a micromagnet exhibits a magnetic field difference between dots, allowing electrons in either dot to be addressed selectively. An unexplained additional signal at half the resonant frequency is presented.
AB - A recently discovered mechanism of electric dipole spin resonance, mediated by the hyperfine interaction, is investigated experimentally and theoretically. The effect is studied using a spin-selective transition in a GaAs double quantum dot. The resonant frequency is sensitive to the instantaneous hyperfine effective field, revealing a nuclear polarization created by driving the resonance. A device incorporating a micromagnet exhibits a magnetic field difference between dots, allowing electrons in either dot to be addressed selectively. An unexplained additional signal at half the resonant frequency is presented.
KW - cond-mat.mes-hall
U2 - 10.1088/0268-1242/24/6/064004
DO - 10.1088/0268-1242/24/6/064004
M3 - Journal article
VL - 24
JO - Semiconductor Science and Technology
JF - Semiconductor Science and Technology
SN - 0268-1242
IS - 6
M1 - 64004
ER -