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Title: Spiral phase of a doped quantum antiferromagnet

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.

Authors:
;
Publication Date:
Research Org.:
ATandT Bell Laboratories, Murray Hill, New Jersey 07974
OSTI Identifier:
6441220
Resource Type:
Journal Article
Journal Name:
Phys. Rev. Lett.; (United States)
Additional Journal Information:
Journal Volume: 62:13
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 36 MATERIALS SCIENCE; ANTIFERROMAGNETIC MATERIALS; VACANCIES; SUPERCONDUCTORS; DIPOLE MOMENTS; DOPED MATERIALS; ELECTRICAL INSULATORS; HEISENBERG MODEL; MAGNETIZATION; METALS; NEUTRON DIFFRACTION; ROTATION; THIN FILMS; COHERENT SCATTERING; CRYSTAL DEFECTS; CRYSTAL MODELS; CRYSTAL STRUCTURE; DIFFRACTION; ELECTRICAL EQUIPMENT; ELEMENTS; EQUIPMENT; FILMS; MAGNETIC MATERIALS; MATERIALS; MATHEMATICAL MODELS; MOTION; POINT DEFECTS; SCATTERING; 656100* - Condensed Matter Physics- Superconductivity; 360204 - Ceramics, Cermets, & Refractories- Physical Properties

Citation Formats

Shraiman, B I, and Siggia, E D. Spiral phase of a doped quantum antiferromagnet. United States: N. p., 1989. Web. doi:10.1103/PhysRevLett.62.1564.
Shraiman, B I, & Siggia, E D. Spiral phase of a doped quantum antiferromagnet. United States. doi:10.1103/PhysRevLett.62.1564.
Shraiman, B I, and Siggia, E D. Mon . "Spiral phase of a doped quantum antiferromagnet". United States. doi:10.1103/PhysRevLett.62.1564.
@article{osti_6441220,
title = {Spiral phase of a doped quantum antiferromagnet},
author = {Shraiman, B I and Siggia, E D},
abstractNote = {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.},
doi = {10.1103/PhysRevLett.62.1564},
journal = {Phys. Rev. Lett.; (United States)},
number = ,
volume = 62:13,
place = {United States},
year = {1989},
month = {3}
}