The strong effect of three-center interactions on the formation of superconductivity with d(x)(2)-y(2) symmetry in the t-J* model

The effect of three-center interactions on the formation of a superconducting phase with d(x)(2)-y(2) symmetry is considered using the diagram technique for Hubbard operators and irreducible Green's functions. It is shown that these interactions lead to a decrease in T-c by a factor of several tens.(C) 2002 MAIK Nauka/Interperiodica.