Superconductor-Insulator Transition in a Two-Dimensional Array of Resistively Shunted Small Josephson Junctions
Physical Review Letters Volume 85 Issue 9
Page 1974-1977
published_at 2000-08-28
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| File | |
| Title ( eng ) |
Superconductor-Insulator Transition in a Two-Dimensional Array of Resistively Shunted Small Josephson Junctions
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| Creator |
Yamaguchi Takahide
Kanda Akinobu
Ootuka Youiti
Kobayashi Shun-ichi
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| Source Title |
Physical Review Letters
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| Volume | 85 |
| Issue | 9 |
| Start Page | 1974 |
| End Page | 1977 |
| 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.
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| Language |
eng
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| Resource Type | journal article |
| Publisher |
American Physical Society
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| Date of Issued | 2000-08-28 |
| Rights |
Copyright (c) 2000 American Physical Society.
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| Publish Type | Version of Record |
| Access Rights | open access |
| Source Identifier |
[ISSN] 0031-9007
[DOI] 10.1103/PhysRevLett.85.1974
[NCID] AA00773679
[DOI] http://dx.doi.org/10.1103/PhysRevB.64.132510
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