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Time-resolved measurement of single-electron tunneling in a Si single-electron transistor with satellite Si islands
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1995
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Electrical EngineeringEngineeringTunneling MicroscopyPhysicsNanoelectronicsBias Temperature InstabilityApplied PhysicsConductance JumpSatellite Si IslandsSi Single-electron TransistorSilicon On InsulatorMicroelectronicsMemory EffectSatellite SiSemiconductor DeviceTime-resolved Measurement
A Si single-electron transistor (SET) with satellite Si islands has been fabricated by pattern-dependent oxidation of cross-shaped Si wires on a separation by implanted oxygen (SIMOX) substrate. The oscillatory conductance-versus-gate voltage characteristics of the SET show hysteresis as a result of abrupt jumps in the conductance at high temperatures around 30 K. This phenomenon is attributed to the memory effect of a single electron that tunnels between the SET Si island and the satellite Si islands. Time-resolved measurements have clarified that the conductance jump is a Poisson process, which is clear evidence of the single-electron tunneling between the Si islands.