Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 2606-2608 |
| Number of pages | 3 |
| Journal | Applied physics letters |
| Volume | 65 |
| Issue number | 20 |
| DOIs | |
| Publication status | Published - 1994 |
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High sensitivity double relaxation oscillation superconducting quantum interference devices. / Adelerhof, Derk Jan; Kawai, Jun; Uehara, Gen; Kado, Hisashi.
In: Applied physics letters, Vol. 65, No. 20, 1994, p. 2606-2608.Research output: Contribution to journal › Article › Academic › peer-review
TY - JOUR
T1 - High sensitivity double relaxation oscillation superconducting quantum interference devices
AU - Adelerhof, Derk Jan
AU - Kawai, Jun
AU - Uehara, Gen
AU - Kado, Hisashi
PY - 1994
Y1 - 1994
N2 - Double relaxation oscillation superconducting quantum interference devices (SQUIDs) (DROSs) have been fabricated with estimated relaxation frequencies up to 14 GHz. Both the intrinsic flux noise and the performance in a flux locked loop with direct voltage readout have been studied. In flux locked loop, a noise level of 0.55 μφ0/√Hz corresponding to an energy sensitivity of 34 h has been obtained for a DROS with a SQUID inductance of 29 pH. The intrinsic sensitivity improves with increasing relaxation frequency, leveling off to a value of 13 h at relaxation frequencies higher than about 3 GHz.
AB - Double relaxation oscillation superconducting quantum interference devices (SQUIDs) (DROSs) have been fabricated with estimated relaxation frequencies up to 14 GHz. Both the intrinsic flux noise and the performance in a flux locked loop with direct voltage readout have been studied. In flux locked loop, a noise level of 0.55 μφ0/√Hz corresponding to an energy sensitivity of 34 h has been obtained for a DROS with a SQUID inductance of 29 pH. The intrinsic sensitivity improves with increasing relaxation frequency, leveling off to a value of 13 h at relaxation frequencies higher than about 3 GHz.
U2 - 10.1063/1.112582
DO - 10.1063/1.112582
M3 - Article
VL - 65
SP - 2606
EP - 2608
JO - Applied physics letters
JF - Applied physics letters
SN - 0003-6951
IS - 20
ER -