Abstract
The efficiency of the adiabatic (de)magnetization cooling processes in frustrated magnetic systems is investigated in detail in the framework of an exactly solvable antiferromagnetic model in the presence of the external magnetic field on the recursive kagome lattice. A well-defined parameter is proposed for an effective qualitative as well as quantitative estimation of the efficiency of such cooling processes to the very low temperatures, which takes into account the value of the final temperature as well as the external magnetic field changes needed for the reaching of this temperature. It is shown that the proposed parameter allows one to identify the most effective cooling strategy for given initial conditions.
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