A parallel study of the energy dependence of the excess current in the superconducting state and the electron–phonon interaction function in the normal state for point microcontacts

The superconducting characteristics and electron–phonon interaction (EPI) spectra in the normal state are investigated experimentally for microscopic point contacts. A relation is established between the magnitude of the excess current and the absolute intensity of the microcontact EPI function, defined for the model of a pure orifice. The dependence of the excess on the voltage is studied, and new nonlinearities in the characteristics of the superconducting contacts are detected at high voltages.

Перевод пока недоступен