Resonating Valence Bond Theory of Superconductivity for Dopant Carriers: Application to the Cobaltates

Details Resonating Valence Bond Theory of Superconductivity for Dopant Carriers: Application to the Cobaltates Resonating Valence Bond Theory of Superconductivity for Dopant Carriers: Application to the Cobaltates

2004-12-09

arxiv.org/abs/cond-mat/0412235v2

Phys. Rev. B 73, 064516 (2006)

Physics

Condensed Matter

Superconductivity

Scientific paper

10.1103/PhysRevB.73.064516

Within the $t$--$J$ model Hamiltonian we present a RVB mean field theory
directly in terms of dopant particles. We apply this theory to
$\mathrm{Na}_{x}\mathrm{CoO_{2}}\cdot y% \mathrm{H_{2}0}$ and show that the
resulting phase diagram $T_c$ versus doping is in qualitative agreement with
the experimental results.

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