Theory of Coexisting Transverse Spin Freezing and Long-Ranged Antiferromagnetic Order in Lightly Doped La_{2-x}Sr_x CuO_4

Abstract

We provide an explanation of the spin-freezing transition recently observed by Chou et al. (Phys. Rev. Lett. 71, 2323 (1993)) in La_{2-x}Sr_x CuO_4 for x <= 0.02. We propose that topological excitations of the 2D Heisenberg quantum antiferromagnet having non-coplanar transverse components have a pair-interaction energy that qualitatively and quantitatively agrees with the observed values of spin-freezing temperature as a function of doping.

18 pages, figures available upon request, revtex, 5006

References in corpus (1)

• An Exact Diagonalization Demonstration of Incommensurability and Rigid Band Filling for N Holes in the t-J Model

Cited by in corpus (11)

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• Spin-glass phase of cuprates
• Doping dependence of the Neel temperature in Mott-Hubbard antiferromagnets: Effect of vortices
• Unifying the Phase Diagrams of the Magnetic and Transport Properties of La_(2-x)Sr_xCuO_4, 0 < x < 0.05
• Scaling Violations with Textures in Two-Dimensional Phase-Ordering
• Renormalization group analysis of the quantum non-linear sigma model with a damping term
• Quasiparticle lifetime behaviour in a simplified self-consistent T-matrix treatment of the attractive Hubbard model in 2D
• Topological doping of repulsive Hubbard models
• Phase diagram of La2-xSrxCuO4 and stripes