Quantum interference on Nb3Sn film contacts at hydrogen temperatures
Golovashkin A.I., Levchenko I.S., Lykov A.N., Makhashvili L.I.
The properties of superconducting Nb3Sn bridge contacts prepared by scraping sputtered films, were investigated experimentally. It is shown that the current-voltage characteristics of the contacts satisfy the parabolic law V = C(I2-Il), where Ic is the critical current. It is observed that C~ \/lc. The velocity of the Abrikosov vortices in the contact is estimated. Nb3Sn quantum interferometers operating at "hydrogen" temperatures were constructed. The temperature dependence of the properties of the interferometers was investigated.
Home
![](/ps/1817/article_27775_800_head.png "<b>The properties of superconducting Nb<sub>3</sub>Sn bridge contacts prepared by scraping sputtered films, were investigated experimentally. It is shown that the current-voltage characteristics of the contacts satisfy the parabolic law <i>V = C(I<sup>2</sup>-Il), </i>where <i>I<sub>c</sub> </i>is the critical current. It is observed that <i>C~ \/l<sub>c</sub>. </i>The velocity of the Abrikosov vortices in the contact is estimated. Nb<sub>3</sub>Sn quantum interferometers operating at "hydrogen" temperatures were constructed. The temperature dependence of the properties of the interferometers was investigated.</b>")