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Magnetic Incommensurability in Doped Mott Insulator

Z. Y. Weng·D. N. Sheng·C. S. Ting
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Abstract

In this paper we explore the incommensurate spatial modulation of spin-spin correlations as the intrinsic property of the doped Mott insulator, described by the $t-J$ model. We show that such an incommensurability is a direct manifestation of the phase string effect introduced by doped holes in both one- and two-dimensional cases. The magnetic incommensurate peaks of dynamic spin susceptibility in momentum space are in agreement with the neutron-scattering measurement of cuprate superconductors in both position and doping dependence. In particular, this incommensurate structure can naturally reconcile the neutron-scattering and NMR experiments of cuprates.

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Z. Y. Weng, D. N. Sheng, C. S. Ting. 1998-09-27. Magnetic Incommensurability in Doped Mott Insulator. https://doi.org/10.1103/physrevb.59.11367

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