Physics – Condensed Matter
Scientific paper
1993-12-20
Physics
Condensed Matter
18 pages, figures available upon request, revtex, 5006
Scientific paper
10.1103/PhysRevB.49.6067
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.
Gooding R. J.
Mailhot A.
Salem N. M.
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