Ja n 19 93 Order of Two - dimensional Isotropic Dipolar Antiferromagnets
نویسنده
چکیده
The question of the existence of order in two-dimensional isotropic dipolar Heisen-berg antiferromagnets is studied. It is shown that the dipolar interaction leads to a gap in the spin-wave energy and a nonvanishing order parameter. The resulting finite Néel-temperature is calculated for a square lattice by means of linear spin-wave theory.
منابع مشابه
Critical dynamics of magnets
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