The largest eigenvalue of the kernel of Eq. (7) for various temperatures (a) and the critical temperature of superconducting transition (b) in the -wave channel as functions of the concentration of the doped holes. The value corresponds to the Fermi level crossing of the saddle point.
(a) The dependencies of and on ; the numbers near the curves are explained in text. (b) The phase diagram of the superconducting and pseudogap states.
Experimental concentration dependencies of and .15 The solid line corresponds to the phase diagram calculated for the value .
The enhancement of with addition of compensated dopants. Curves 1–6 correspond to a change in the dopant concentration from 0.03 to 0.18 ions per unit cell.
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