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ID 18790
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creator
Yamaguchi, Takahide
Kanda, Akinobu
Ootuka, Youiti
Kobayashi, Shun-ichi
abstract
We have fabricated two-dimensional (2D) small-Josephson-junction arrays of which each Al-AlOx-Al junction is shunted by a Cr resistor. The arrays with large junction resistance and large charging energy show a transition from insulating to superconducting behavior when the shunt resistance is lowered below a critical value, which is close to 2RQ ( RQ≡h/4e2 = 6.45 kΩ). The measured phase diagram is consistent with theories of quantum-fluctuation-driven and dissipation-driven phase transitions in the 2D Josephson-junction array with Ohmic shunt resistors.
journal title
Physical Review Letters
volume
Volume 85
issue
Issue 9
start page
1974
end page
1977
date of issued
2000-08-28
publisher
American Physical Society
issn
0031-9007
ncid
publisher doi
language
eng
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
text version
publisher
rights
Copyright (c) 2000 American Physical Society.
relation url
department
Graduate School of Advanced Sciences of Matter