Possible propagation of the Zhang-Rice singlet as a probable Cooper channel in the $CuO_2$ planes

Details Possible propagation of the Zhang-Rice singlet as a probable Cooper channel in the $CuO_2$ planes Possible propagation of the Zhang-Rice singlet as a probable Cooper channel in the $CuO_2$ planes

2008-09-17

arxiv.org/abs/0809.3033v1

Physics

Condensed Matter

Superconductivity

10 pages

Scientific paper

10.1016/j.physleta.2008.10.015

The issue of how superconductivity originate in the $CuO_2$ planes believed to be crucial to understanding the high $T_c$ superconducting cuprates is still an going debate. In the wake of recent experimental observations of the the Zhang-Rice singlet (ZRS), its formation and propagation need to be revisited especially by using a simple approach almost at a phenomenological level. Within a highly simplified correlated variational approach (HSCVA) in this paper, a new formation of the ZRS as constituting the ground state of a single-band t-J model of the $CuO_2$ planes is developed. This formation is then used to demonstrate how the ZRS can be propagated as a probable Cooper channel in the $CuO_2$ planes.

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