Anomalies in the superconducting transition in A-15 films with a periodic inhomogeneity
Kolyasnikov V. A., Sotnikov G. V., Tokarev A. S., Nikonov A. A.
An anomalous behavior of the superconducting transition has been observed in Nb3Sn and Nb3Ge films bombarded by He+ ions with Ε = 3 MeV through grid masks with grid lines and apertures having characteristic dimensions of a few tens of microns. An explanation is proposed on the basis of the assumption that long-range stresses arise around disordered regions in the A-15 lattice.