Negative differential conductance induced by spin-charge separation
classification
❄️ cond-mat.str-el
keywords
spin-chargeconductancedifferentialinducednegativeseparationstatesassociated
read the original abstract
Spin-charge states of correlated electrons in a one-dimensional quantum dot attached to interacting leads are studied in the non-linear transport regime. With non-symmetric tunnel barriers, regions of negative differential conductance induced by spin-charge separation are found. They are due to a correlation-induced trapping of higher-spin states without magnetic field, and associated with a strong increase in the fluctuations of the electron spin.
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