A variational Monte Carlo study of the four-band extended Hubbard model finds BCS-BEC crossover at hole doping δ=0.06, while Mott and stripe phases mask it at other dopings.
Quantum Liquid Crys- FIG. 5. (a) Band structure and (b) Fermi surface for κ-HgBr. High symmetry points are Γ(0,0), Y( π/R x), Z( π/ 2Ry), and M(π/R x, π/ 2Ry). tals
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Possibility of BCS-BEC crossover in $\kappa$-type organic superconductors
A variational Monte Carlo study of the four-band extended Hubbard model finds BCS-BEC crossover at hole doping δ=0.06, while Mott and stripe phases mask it at other dopings.