Magnetic incommensurability in a doped Mott insulator

Article

关键词: T-J MODEL;    NEUTRON-SCATTERING EXPERIMENTS;    MEAN-FIELD-THEORY;    ANTIFERROMAGNET;    LA2-XSRXCUO4;    STATE;    PHASE;    TEMPERATURE;    YBA2CU3O7;    NMR;   

DOI  :  10.1103/PhysRevB.59.11367

来源: SCIE

【 摘 要 】

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 agree ment 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. [S0163-1829(99)03017-9].

【 授权许可】

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