Recent experiments have demonstrated a working cell suitable for implementing the quantum-dot cellular automata (QCA) paradigm. These experiments have been performed using metal-island clusters. The most promising approach to QCA operation involves quasiadiabatically switching the cells. This has been analyzed extensively in gated semiconductor cells. Here we present a metal-island cell structure that makes quasiadiabatic switching possible. We show how this permits quasiadiabatic clocking, and enables a pipelined architecture.
REFERENCES
1.
C. S.
Lent
, P. D.
Tougaw
, W.
Porod
, and G. H.
Bernstein
, Nanotechnology
4
, 49
(1993
).2.
C. S.
Lent
, P. D.
Tougaw
, and W.
Porod
, Appl. Phys. Lett.
62
, 714
(1993
).3.
4.
5.
6.
7.
A. O.
Orlov
, I.
Amlani
, G. H.
Bernstein
, C. S.
Lent
, and G. L.
Snider
, Science
277
, 928
(1997
).8.
E. S.
Snow
, P. M.
Campbell
, R. W.
Rendell
, F. A.
Buot
, D.
Park
, C. R. K.
Marrian
, and R.
Magno
, Appl. Phys. Lett.
72
, 3071
(1998
).9.
The approach to quasiadiabatic switching is similar to that reported in another context by by
K. K.
Likharev
and A. N.
Korotkov
, Science
273
, 763
(1996
).10.
11.
For review of “single electronics”, see D. V. Averin and K. K. Likharev, in Single Charge Tunneling, edited by H. Grabert and Michel H. Devoret (Plenum, New York, 1992), Chap. 9.
12.
MOSES 1.0, Monte-Carlo Single-Electronics Simulator, 1995, developed by Ruby Chen with contributions from A. M. Matsuoka, A. N. Korotkov, B. Harris, P. Shevchenko and K. K. Likharev, available from Rubi Chen, e-mail: rchen@max:physics.sunysb.edu.
13.
SIMON, Single Electron Device and Circuit Simulator, available from Dr. Christoph Wasshuber, http://members.magnet.at/catsmeow.
14.
L. R. C.
Fonseca
, A. N.
Korotkov
, K. K.
Likharev
, and A. A.
Odintsov
, J. Appl. Phys.
78
, 3238
(1995
).15.
16.
L. J.
Geerligs
, D. V.
Averin
, and J. E.
Mooij
, Phys. Rev. Lett.
65
, 3037
(1990
).
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© 1999 American Institute of Physics.
1999
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