Bulg. J. Phys. vol.25 no.1-2 (1998), pp. 062-080

Pairing in Layered Cuprates by Two-Electron Exchange Between Adjacent Oxygen Ions

T.M. Mishonov, A.V. Groshev, A.A. Donkov
Theoretical Physics Department, Faculty of Physics, University of Sofia, 5 J Bourchier Blvd., 1164 Sofia, Bulgaria
Abstract. We consider a two-electron exchange through the free space between the two adjacent oxygen atoms forming a right angle in a conducting CuO2 plane. This exchange attraction could give origin to the BCS pairing in layered cuprates. An estimation shows that the properties of high Tc superconductors can be interpreted as a consequence of well investigated atomic process.

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