A Surface-Gated InSb Quantum Well Single Electron Transistor

Details A Surface-Gated InSb Quantum Well Single Electron Transistor A Surface-Gated InSb Quantum Well Single Electron Transistor

2007-04-30

arxiv.org/abs/0704.3897v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

10.1088/1367-2630/9/8/261

Single electron charging effects in a surface-gated InSb/AlInSb QW structure are reported. This material, due to its large g-factor and light effective mass, offers considerable advantages over more commonly used materials, such as GaAs, for quantum information processing devices. However, differences in material and device technology result in significant processing challenges. Simple Coulomb blockade and quantised confinement models are considered to explain the observation of conductance oscillations in these structures. The charging energy is found to be comparable with the energy spectrum for single particle states.

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