Magnetic Incommensurability in Doped Mott Insulator

Details Magnetic Incommensurability in Doped Mott Insulator Magnetic Incommensurability in Doped Mott Insulator

1998-09-27

arxiv.org/abs/cond-mat/9809363v1

Physics

Condensed Matter

Strongly Correlated Electrons

12 pages (RevTex), five postscript figures

Scientific paper

10.1103/PhysRevB.59.11367

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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