The Specific Heat Bearing of the Manganese Oxides in Double-Exchange Model


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Abstract


Materials that present the phenomenon of “colossal” magnetoresistance are currently under much experimental investigation due to their potential technological applications. Typical compounds that have this phenomenon are ferromagnetic (FM) metallic oxides of the form R1−xAxMnO3 (where R = La, Pr, Nd; A = Sr, Ca, Ba, Pb). In this paper we investigate the specific heat behavior of these manganese oxides by Monte Carlo simulations on the ferromagnetic Kondo lattice model. We present the dependence of specific heat for square and simple cubic lattices with temperature for different electron densities and Kondo lattice model parameters
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Keywords


Kondo Lattice Model; Specific Heat; Strongly Correlated Electron Systems

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References


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