TY - JOUR
T1 - Charge Distribution in a Kondo-Correlated Quantum Dot
AU - Sprinzak, D.
AU - Ji, Yang
AU - Heiblum, M.
AU - Mahalu, D.
AU - Shtrikman, Hadas
PY - 2002
Y1 - 2002
N2 - We report on direct measurement of charge and its distribution in a Kondo correlated quantum dot (QD). A noninvasive potential-sensitive detector, in proximity with a QD, reveals that, although the conductance of the QD is significantly enhanced as it enters the Kondo regime, the average charge remains unaffected. This demonstrates the separation between spin and charge degrees of freedom. We find, however, under certain conditions, an abrupt redistribution of charge in the QD, taking place with an onset of Kondo correlation. This suggests a correlation between the spin and charge degrees of freedom.
AB - We report on direct measurement of charge and its distribution in a Kondo correlated quantum dot (QD). A noninvasive potential-sensitive detector, in proximity with a QD, reveals that, although the conductance of the QD is significantly enhanced as it enters the Kondo regime, the average charge remains unaffected. This demonstrates the separation between spin and charge degrees of freedom. We find, however, under certain conditions, an abrupt redistribution of charge in the QD, taking place with an onset of Kondo correlation. This suggests a correlation between the spin and charge degrees of freedom.
UR - http://www.scopus.com/inward/record.url?scp=85038337272&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.88.176805
DO - 10.1103/PhysRevLett.88.176805
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AN - SCOPUS:85038337272
SN - 0031-9007
VL - 88
SP - 4
JO - Physical Review Letters
JF - Physical Review Letters
IS - 17
ER -