Superconducting properties of La-substituted Bi-2201 crystals

Ya. G. Ponomarev, N. Z. Timergaleev, Kim Ki Uk +8

The superconducting gap Delta has been measured in Bi2Sr2-xLaxCuO6+d single crystals in a wide range of temperatures 4.2 K < T < Tc by point-contact and tunnelling spectroscopy for…