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Field-Induced Magnetic Order in Quantum Spin Liquids

Stefan Wessel·Maxim Olshanii·Stephan Haas
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Abstract

We study magnetic field-induced three-dimensional ordering transitions in low-dimensional quantum spin liquids, such as weakly coupled, antiferromagnetic spin-1/2 Heisenberg dimers and ladders. Using stochastic series expansion quantum Monte Carlo simulations, thermodynamic response functions are obtained down to ultra-low temperatures. We extract the critical scaling exponents which dictate the power-law dependence of the transition temperature on the applied magnetic field. These are compared with recent experiments on candidate materials and with predictions for the Bose-Einstein condensation of magnons obtained in mean-field theory.

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Stefan Wessel, Maxim Olshanii, Stephan Haas. 2001-05-23. Field-Induced Magnetic Order in Quantum Spin Liquids. https://doi.org/10.1103/physrevlett.87.206407

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