C.D. Tesche
Physical Review Letters
We present the results of measurements of the noise of open loop and flux-locked DC SQUIDs at frequencies from 100 kHz to 10-4 Hz. The SQUIDs studied in this work were low l/f noise devices fabricated at IBMs East Fishkill facility. Measurements were made in DC magnetic fields of 2x103 G using conventional shielding and also in an ultra-low magnetic field environment of 10-7 G using expanded superconducting foil shields and a feedback-controlled slow cooling technique. The open-loop results are consistent with the earier work of Teschel. We include a description of the apparatus used for obtaining the various noise measurements. © 1989 IEEE
C.D. Tesche
Physical Review Letters
C.C. Chi, L. Krusin-Elbaum, et al.
International Conference on Low Temperature Physics (LT) 1983
C.D. Tesche, K.H. Brown, et al.
IEEE Transactions on Magnetics
C.D. Tesche
IEEE Transactions on Magnetics