Single-electron tunneling devices

Single-electron tunneling devices can detect charges much smaller than the charge of an electron. This enables phenomenally precise charge measurements and it has been suggested that large scale integration of single-electron devices could be used to construct logic circuits with a high device packing density. Here the operation of the two basic types of single-electron tunneling transistors is reviewed. The applications of single-electron tunneling in precision measurements and in general purpose computation is discussed. Particular attention is paid to the characteristics of single-electron tunneling transistors in the superconducting state.

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