Abstract
We consider the magnetocaloric effect (MCE) for the 2D Ising system with a fixed concentration of non-magnetic mobile charged impurities. Pseudospin formalism and highperformance Monte Carlo simulations are used to describe the system and, in particular, to obtain the temperature dependences of the MCE parameters for our system. The effect of the impurityimpurity interaction strength on the concentration dependence of the MCE parameters is discussed, as well as the possibility of using the MCE effect to reveal a hidden frustration in the system.
Highlights
The magnetocaloric effect (MCE) is the heat absorbed or released as a result of a change in a magnetic field applied to the material
The effect of the impurityimpurity interaction strength on the concentration dependence of the MCE parameters is discussed, as well as the possibility of using the MCE effect to reveal a hidden frustration in the system
The difference in the detailed structure of the system near the critical temperature of the magnetic phase transition should affect the parameters of the MCE, and we study this effect in the present work
Summary
The magnetocaloric effect (MCE) is the heat absorbed or released as a result of a change in a magnetic field applied to the material. We consider the magnetocaloric effect (MCE) for the 2D Ising system with a fixed concentration of non-magnetic mobile charged impurities. The concentration n of charged non-magnetic impurities is fixed: nN = i P0i = const, where N is the number of lattice sites.
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