Superconducting quantum interferometer in a magnetic field

С. И. Бондаренко

С. И. Бондаренко

On limiting magnetic field sensitivity of superconducting quantum interferometer with two Josephson junctions was published in SQUID - Superconducting Quantum Interference Devices and their Applications on page 297.

E. Altshuler, Alexandre Satrapinski

S. I. Link, V. P. Koverya, A. V. Krevsun +1 more

The patterns of reversible changes in the critical current and discrete current states of a structure in the form of a superconducting quantum interferometer shunted by superconducting inductance, as a result of passing an alternating transport current through the structure and applying an external alternating magnetic field simultaneously with a direct transport current, was established. A new type of discrete stationary state was discovered during the transition of the interferometer to the resistive state caused by the combined action of direct and alternating transport currents.

С. И. Бондаренко, V. N. Fenchenko, V. P. Koverya +1 more

A mathematical model of the quantum processes in an asymmetric interferometer with an ultralow inductance L0 ≈ 10−13 H, shunted by a highly inductive superconducting circuit L1 >> L0 × 107 is constructed. The model is verified by comparing the calculated parameters of the model with the experimentally measured values.