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Magnetic ordering in a doped frustrated spin-Peierls system

Nicolas Laflorencie·Didier Poilblanc·Anders W. Sandvik
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Abstract

Based on a model of a quasi-one dimensional spin-Peierls system doped with non-magnetic impurities, an effective two-dimensional Hamiltonian of randomly distributed S=1/2 spins interacting via long-range pair-wise interaction is studied using a stochastic series expansion quantum Monte Carlo method. The susceptibility shows Curie-like behavior at the lowest temperatures reached although the staggered magnetisation is found to be finite for $T\to 0$. The doping dependance of the corresponding three-dimensional Neel temperature is also computed.

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Nicolas Laflorencie, Didier Poilblanc, Anders W. Sandvik. 2004-08-16. Magnetic ordering in a doped frustrated spin-Peierls system. https://doi.org/10.1103/physrevb.69.212412

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