Properties of a diagonal 2-orbital ladder model of the Fe-pnictide superconductors
Berg, E. · Kivelson, S. A. · Scalapino, D. J.
Original · EN
We study a diagonal 2-orbital ladder model of the Fe based superconductors using the density matrix renormalization group method. At half filling, we find a close competition between a "spin-striped" state and a non-collinear "spin-checkerboard" state, as well as significant nematic correlations. Upon finite hole or electron doping, the dominant pairing correlations are found to have A₁,g (S-wave) symmetry.
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