Av. Lukashenko et al., DIRECT MEASUREMENT OF CRITICAL CURRENTS OF INDIVIDUAL WEAK LINKS IN DC INTERFEROMETER BY SCANNING LASER MICROSCOPE, Cryogenics, 34, 1994, pp. 879-881
This paper describes the Iron-destructive technique of in situ measure
ment of critical currents I-c of individual weak links in thin film su
perconducting quantum de interferometers (de SQUIDs). The low temperat
ure scanning laser microscope (LTLSM) is used to study the SQUID resis
tive response to the laser radiation and to measure the critical curre
nts I-c1 and I-c2 of the weak links separately.