2-MAGNON EXCHANGE PAIRING IN HIGH-T(C) SUPERCONDUCTORS

A new magnetic pairing mechanism is suggested between the spin-up and spin-down holes confined to the two sublattices of an antiferromagnet. The interaction of a hole with its spin environment is attributed to the loss of the Heisenberg exchange interaction caused by the missing electron. Singlet s-wave pairing is produced by the Froehlich interact ion for the exchange of two magnons. For two holes of a pair occupying nearest-neighbor sites, the exchange coupling favours d-wave pairing. The T(c) results are discussed.