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    [2] Elementary excitations and magnetic properties of Heisenberg stacked antiferromagnetic triangular thin film
    D. Loison et H. T. Diep, J. Mag. Mag. Mater. 104-107 (1992)1689-1 690.
    We study a thin film which is composed of antiferromagnetic triangular sheets stacked along the $y$ direction with {\it quantum} Heisenberg spins 1/2 by a Green function technique. We calculated self-consistently the spin-wave spectrum and the local magnetization as a function of the temperature for several surface exchange interactions and film thicknesses. Monte Carlo simulations of the same system but with classical Heisenberg spins are also performed for comparison.
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