Photocurrent, Rectification, and Magnetic Field Symmetry of Induced Current Through Quantum Dots
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Photocurrent, Rectification, and Magnetic Field Symmetry of Induced Current Through Quantum Dots. / DiCarlo, L.; M. Marcus, C.; Harris jr, J.
In: Physical Review Letters, Vol. 91, No. 24, 17.04.2003, p. 246804.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Photocurrent, Rectification, and Magnetic Field Symmetry of Induced Current Through Quantum Dots
AU - DiCarlo, L.
AU - M. Marcus, C.
AU - Harris jr, J.
PY - 2003/4/17
Y1 - 2003/4/17
N2 - We report mesoscopic dc current generation in an open chaotic quantum dot with ac excitation applied to one of the shape-defining gates. For excitation frequencies large compared to the inverse dwell time of electrons in the dot (i.e., GHz), we find mesoscopic fluctuations of induced current that are fully asymmetric in the applied perpendicular magnetic field, as predicted by recent theory. Conductance, measured simultaneously, is found to be symmetric in field. In the adiabatic (i.e., MHz) regime, in contrast, the induced current is always symmetric in field, suggesting its origin is mesoscopic rectification.
AB - We report mesoscopic dc current generation in an open chaotic quantum dot with ac excitation applied to one of the shape-defining gates. For excitation frequencies large compared to the inverse dwell time of electrons in the dot (i.e., GHz), we find mesoscopic fluctuations of induced current that are fully asymmetric in the applied perpendicular magnetic field, as predicted by recent theory. Conductance, measured simultaneously, is found to be symmetric in field. In the adiabatic (i.e., MHz) regime, in contrast, the induced current is always symmetric in field, suggesting its origin is mesoscopic rectification.
KW - cond-mat.mes-hall
U2 - 10.1103/PhysRevLett.91.246804
DO - 10.1103/PhysRevLett.91.246804
M3 - Journal article
C2 - 14683146
VL - 91
SP - 246804
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 24
ER -
ID: 38327483