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Integrated logic circuits using single-atom transistors.

Abstract：

:Scaling down the size of computing circuits is about to reach the limitations imposed by the discrete atomic structure of matter. Reducing the power requirements and thereby dissipation of integrated circuits is also essential. New paradigms are needed to sustain the rate of progress that society has become used to. Single-atom transistors, SATs, cascaded in a circuit are proposed as a promising route that is compatible with existing technology. We demonstrate the use of quantum degrees of freedom to perform logic operations in a complementary-metal-oxide-semiconductor device. Each SAT performs multilevel logic by electrically addressing the electronic states of a dopant atom. A single electron transistor decodes the physical multivalued output into the conventional binary output. A robust scalable circuit of two concatenated full adders is reported, where by utilizing charge and quantum degrees of freedom, the functionality of the transistor is pushed far beyond that of a simple switch.

journal_name

Proc Natl Acad Sci U S A

journal_title

Proceedings of the National Academy of Sciences of the United States of America

authors

Mol JA,Verduijn J,Levine RD,Remacle F,Rogge S

doi

10.1073/pnas.1109935108

subject

Has Abstract

pub_date

2011-08-23 00:00:00

pages

13969-72

issue

34

eissn

0027-8424

issn

1091-6490

pii

1109935108

journal_volume

108

pub_type

杂志文章

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