Quantum to classical crossover in the 2D easy-plane XXZ model
نویسندگان
چکیده
منابع مشابه
Quantum to Classical Crossover in the 2D Easy-Plane XXZ Model
Ground-state and thermodynamic properties of the spin-1/2 two-dimensional easy-plane XXZmodel are investigated by both a Green's-function approach and by Lanczos diagonalization on lattices with up to 36 sites. We calculate the spatial and temperature dependences of various spin correlation functions, as well as the wave-vector dependence of the spin susceptibility for all anisotropy parameters...
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ژورنال
عنوان ژورنال: Brazilian Journal of Physics
سال: 2000
ISSN: 0103-9733
DOI: 10.1590/s0103-97332000000400015