Practical issues in the realization of quantum-dot cellular automata

被引：32

作者：

Bernstein, GH

Bazan, G

Chen, MH

Lent, CS

Merz, JL

Orlov, AO

Porod, W

Snider, GL

Tougaw, PD

机构：

[1] Dept. of Electrical Engineering, University of Notre Dame, Notre Dame

来源：

SUPERLATTICES AND MICROSTRUCTURES | 1996年 / 20卷 / 04期

基金：

美国国家科学基金会; 美国国家航空航天局;

关键词：

D O I：

10.1006/spmi.1996.0102

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Several practical issues in the development and operation of quantum-dot cellular automata (QCA) cells and systems are discussed. The need for adiabatic clocking of QCA systems and modeling of electrostatic confinement of quantum dots are presented. Experimental data on dot coupling and applications to QCA detectors in a 2-dimensional electron gas (2DEG) are presented. We report a charge detection scheme where we observe strong modulation in the detector signal, in addition to the detector exhibiting minimal effect on the dot being measured. With this investigation, we demonstrate these two key components required for QCA in AlGaAs/GaAs materials, namely dot coupling and charge-state detection. (C) 1996 Academic Press Limited

引用

页码：447 / 459

页数：13

共 22 条

[1] Design of computationally useful single-electron digital circuits [J].