Critical behavior of multiferroic hexagonal RMnO3
نویسنده
چکیده
Using a microscopic model and a Green’s function technique we have studied the critical behavior of somemultiferroics such as hexagonal RMnO3. The temperature dependence and the external field dependence of the magnetization and susceptibility are determined. The critical exponents b and g are calculated. Applying the scaling laws a, d, and n are also obtained. The critical exponents are in very good agreement with the existing experimental data.
منابع مشابه
Critical Exponents of Multiferroic Hexagonal RMnO3
A microscopic model and a Green’s function technique are developed to study the critical behavior of some multiferroics such as hexagonal RMnO3. The temperature dependence and the external field dependence of the order parameter for the magnetization are determined. The critical exponents β and δ are calculated. Applying the scaling laws γ, α and ν are also obtained. The critical exponents are ...
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تاریخ انتشار 2012