2005/10/31 by Vladimir Juričić, V. Juricic, M. B. Silva Neto +1 · 20 citations
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Algorithm #Computer science #Condensed matter physics #Doping #Magnetic and transport properties of perovskites and related materials #Physics #Physics of Superconductivity and Magnetism #cond-mat.str-el
paper · pdf · doi:10.1103/physrevlett.96.077004
published in Physical Review Letters 96(7), 077004 (American Physical Society) · 4 pages, 2 figures, published in Phys. Rev. Lett
openalex publication_date 2006/02/23 · arxiv created 2006/03/29 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We study the static magnetic correlations in lightly doped La2-xSrxCuO4 within the framework of a dipolar frustration model for a canted antiferromagnet. We show that the stability of the canted Néel state for x < 2% is due to the Dzyaloshinskii-Moriya and XY anisotropies. For higher doping, the ground state is unstable towards a helicoidal magnetic phase, where the transverse components of the staggered magnetization rotate in a plane perpendicular to the orthorhombic b axis. Our theory reconciles, for the first time, the incommensurate peaks observed in elastic neutron scattering with Raman and magnetic susceptibility experiments in La2-xSrxCuO4 .