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cond-mat.str-el1999
Magnetic Order-Disorder Transition in the Two-Dimensional Spatially Anisotropic Heisenberg Model at Zero Temperature
D. Ihle, C. Schindelin, A. Weisse +1
The ground-state properties of the spin-1/2 antiferromagnetic Heisenberg model with spatially anisotropic couplings on a square lattice are investigated by a spin-rotation-invarian…
cond-mat.str-el1999
Quantum lattice fluctuations in a frustrated Heisenberg spin-Peierls chain
A. Weisse, G. Wellein, H. Fehske
As a simple model for spin-Peierls systems we study a frustrated Heisenberg chain coupled to optical phonons. In view of the anorganic spin-Peierls compound CuGeO3 we consider two…