Holon Pair Condensation and Phase Diagram of High T_c Cuprates

Details Holon Pair Condensation and Phase Diagram of High T_c Cuprates Holon Pair Condensation and Phase Diagram of High T_c Cuprates

1998-12-07

arxiv.org/abs/cond-mat/9812096v2

Physics

Condensed Matter

Superconductivity

6 pages, 3 figures

Scientific paper

10.1103/PhysRevB.60.6324

A possibility of holon (boson) pair condensation is explored for hole doped high T_c cuprates, by using the U(1) slave-boson representation of the t-J Hamiltonian with the inclusion of hole-hole repulsion. A phase diagram of the hole doped high T_c cuprates is deduced by allowing both the holon pairing and spinon pairing. It is shown that the spin gap size remains nearly unchanged below the holon pair condensation temperature. We find that the s-wave holon pairing under the condition of d-wave singlet pairing is preferred, thus allowing d-wave hole pairing.

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