Effect of disordering on critical temperature of d-wave superconductors with small coherence length

By means of numerical simulation one investigated into effect of atomic disordering on the critical temperature of α-wave superconductors with coherence short length. The calculations were based on the Bogolyubov method enabling to take account of spatial inhomogeneity of a parameter of a superconducting order. It is shown that the mentioned approach enables to explain experimentally observed drop of the critical temperature which is slower in contrast to that predicted on the basis of the Abrikosov-Gorkov theory at disordering, and to explain, as well, quasi-linear dependence of the critical temperature on concentration of defects