P. Alnot, D.J. Auerbach, et al.
Surface Science
The operation of a SQUID array with 100 dc SQUIDs has been demonstrated using a single flux-locked loop. The SQUID array had a maximum dynamic range of ±1.3 X 108/ √Hz in the low frequency region, a high slewing rate over a wide frequency range, and an extrinsic white noise energy sensitivity of 6 X 10 -31J/ Hz. These data were obtained with a very simple feedback circuit made from three inexpensive operational amplifiers that operated in the dc-feedback mode. The feedback loop did not have any impedance matching circuit between the SQUID array and the room temperature electronics. Our results show that a SQUID array can have a significant impact on those applications that demand good noise performance and a very high dynamic range. © 1993 IEEE. All rights reserved.
P. Alnot, D.J. Auerbach, et al.
Surface Science
A. Nagarajan, S. Mukherjee, et al.
Journal of Applied Mechanics, Transactions ASME
J. Tersoff
Applied Surface Science
I. Morgenstern, K.A. Müller, et al.
Physica B: Physics of Condensed Matter