Konstantin Arutyunov: presented recent results on NIS interferometers. Two main questions have arised: what mechanism is responsible for oscillations of the tunnel current in magnetic field, and: is it possible to use NISI as a device similar to a SQUID.
V. Koshelets: suggested to study the dependence of the effect magnitude and the period as a function of the critical current in the loop.
KA: Suggested to make a notch with AFM and to re-measure the effect. Reduction of the wire cross section should reduce the critical current.
V. Zakosarenko suggested to incorporate the inductive term: if the product Ic x L is comparable to the flux quanta, then the contribution of the self-inductance should be considered.
M. Tarasov remarked that the NISI sensitivity is ~ 200 uV / flux which is a rather respectful value for a SQUID, while the noise is much smaller and corresponds to a noise of simple NIS junction.
SUMMARY
NISI is a new interesting device. Physics involved should be clarified. It might appear a strong competitor to a conventional SQUID.