Tunnel injection of spin-polarized current in Co2CrxFe1–xAl (x = 1, 0.6)–insulator–superconductor heterostructures - E. M. Rudenko; I. V. Korotash; A. A. Krakovnyj; Ju. V. Kudrjavtsev; Ju. V. Shlapak (Low Temperature Physics, 2016)