We measured the static error rate of a high- superconductor dc superconducting quantum interference device (SQUID), which, in the form as a storage loop for single flux quanta, is a basic element of rapid single flux quantum circuits. Using high- multilayer bicrystal technology, we fabricated a stacked dc SQUID pair, one SQUID serving as the storage loop, the other one as the readout device. The escape rate of a stored flux quantum was measured as a function of the bias current at a temperature of 28 K. The measured error rates were in good agreement with a model calculation based on thermally activated barrier crossing.
REFERENCES
1.
K. K.
Likharev
and V. K.
Semenov
, IEEE Trans. Appl. Supercond.
1
, 3
(1991
).2.
B.
Oelze
, B.
Ruck
, E.
Sodtke
, A. F.
Kirichenko
, M. Yu.
Kupriyanov
, and W.
Prusseit
, Appl. Phys. Lett.
70
, 658
(1997
).3.
S.
Shokhor
, B.
Nadgorny
, M.
Gurvitch
, V.
Semenov
, Yu.
Polyakov
, K.
Likharev
, S. Y.
Hou
, and J. M.
Phillips
, Appl. Phys. Lett.
67
, 2869
(1995
).4.
M. Hidaka, T. Satoh, H. Terai, and S. Tahara, IEICE Trans. E80-C, 1226 (1997).
5.
6.
C.
Horstmann
, P.
Leinenbach
, R.
Dittmann
, U.
Memmert
, U.
Hartmann
, and A. I.
Braginski
, IEEE Trans. Appl. Supercond.
7
, 2844
(1997
).7.
H. Q.
Li
, R. H.
Ono
, L. R.
Vale
, D. A.
Rudman
, and S. H.
Liou
, Appl. Phys. Lett.
71
, 1121
(1997
).8.
R.
Gross
, P.
Chaudhari
, M.
Kawasaki
, and A.
Gupta
, Phys. Rev. B
42
, 10
735
(1990
).9.
H. Beha, Digitale Speicherzellen mit Josephson-Kontakten (VDE, 1981).
10.
11.
M.
Naor
, C. D.
Tesche
, and M. B.
Ketchen
, Appl. Phys. Lett.
41
, 202
(1982
).12.
This content is only available via PDF.
© 1998 American Institute of Physics.
1998
American Institute of Physics
You do not currently have access to this content.
