Spiral phase of a doped quantum antiferromagnet

Boris I. Shraiman and Eric D. Siggia
Phys. Rev. Lett. 62, 1564 – Published 27 March 1989
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Abstract

A low density of vacancies in a 2D, spin-(1/2, Heisenberg antiferromagnet leads (for a range of effective couplings) to a metallic phase with incommensurate antiferromagnetic order, i.e., with the staggered magnetization rotating in a plane with the wave number proportional to the density. This structure originates from the polarization of the antiferromagnetic dipole moments of the vacancies. The excitation spectrum of this spiral state includes an interesting low-lying mode. Implications for neutron scattering and normal-state resistivity are discussed.

  • Received 28 November 1988

DOI:https://doi.org/10.1103/PhysRevLett.62.1564

©1989 American Physical Society

Authors & Affiliations

Boris I. Shraiman

  • AT&T Bell Laboratories, Murray Hill, New Jersey 07974

Eric D. Siggia

  • Ecole Normale Superieure, 75231 Paris CEDEX 05, France

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Vol. 62, Iss. 13 — 27 March 1989

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