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arXiv 0704.3897cond-mat.mes-hall
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表面选通InSb量子阱单电子晶体管

A Surface-Gated InSb Quantum Well Single Electron Transistor

J. M. S. Orr, P. D. Buckle, M. Fearn, C. J. Storey, L. Buckle, T. Ashley

摘要:

报道了表面栅InSb/AlInSb量子阱结构中的单电子充电效应。这种材料,由于其大的g因子和轻的有效质量,为量子信息处理设备提供了比更常用的材料(例如GaAs)更大的优势。然而,材料和器件技术的差异导致了显著的加工挑战。简单的库仑阻塞和量子限制模型被认为是解释观察到的电导振荡在这些结构。充电能量被发现是可比的单粒子状态的能谱。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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