1989/03/27 by Boris I. Shraiman, Eric D. Siggia · 10 citations
Physics and Astronomy · #Physics of Superconductivity and Magnetism #Advanced Condensed Matter Physics #Magnetic properties of thin films #Condensed matter physics #Antiferromagnetism #Physics #Magnetization #Excitation #Neutron scattering #Scattering #Dipole #Magnetic field #Quantum mechanics
paper · doi:10.1103/physrevlett.62.1564
openalex publication_date 1989/03/27 · openalex created_date 2016/06/24 · openalex updated_date 2026/06/26
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.