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Experimentally determining the exchange parameters of quasi-two-dimensional Heisenberg magnets
New Journal of Physics
Though long-range magnetic order cannot occur at temperatures T > 0 in a perfect two-dimensional (2D) Heisenberg magnet, real quasi-2D materials will invariably possess nonzero inter-plane coupling J ⊥ driving the system to order at elevated temperatures. This process can be studied using quantum Monte Carlo calculations. However, it is difficult to test the results of these calculations experimentally since for highly anisotropic materials in which the in-plane coupling is comparable withdoi:10.1088/1367-2630/10/8/083025 fatcat:zanps7pj2jex7laocjud436hua