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Phases of the 2D Hubbard model at low doping

A. V. Chubukov·K. A. Musaelian
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Abstract

We show that the planar spiral phase of the 2D Hubbard model at low doping, x, is unstable towards a noncoplanar spin configuration. The novel equilibrium state we found at low doping is incommensurate with the inverse pitch of the spiral varying as x^(1/2), but nevertheless has a dominant peak in the susceptibility at (π,π). Relevance to the NMR and neutron scattering experiments in La_2-xSr_xCuO_4 is disccussed.

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A. V. Chubukov, K. A. Musaelian. 1994-03-07. Phases of the 2D Hubbard model at low doping. https://doi.org/10.1088/0953-8984%2F7%2F11%2F001

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