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Theoretical aspects of the magnetocaloric effect
Abstract The magnetocaloric effect is the heating or cooling of magnetic materials when subjected to magnetic field variation. It is characterized by the temperature change ( Δ T a d ) in anExpand
The magnetic and magnetocaloric properties of Gd5Ge2Si2 compound under hydrostatic pressure
The Gd5Ge2Si2 compound presents a giant magnetocaloric effect with transition temperature at around 276 K and is a very good candidate for application as an active regenerator material in roomExpand
Theoretical description of the colossal entropic magnetocaloric effect : Application to MnAs
P. J. von Ranke,1,* Sergio Gama,2 A. A. Coelho,2 A de Campos,2 A. Magnus G. Carvalho,2 F. C. G. Gandra,2 and N. A. de Oliveira1 1Instituto de Fisica, Universidade do Estado do Rio de Janeiro—UERJ,Expand
Magnetocaloric effect in the R Ni 5 ( R=Pr , Nd, Gd, Tb, Dy, Ho, Er) series
In this paper, the magnetocaloric effect in the hexagonal intermetallic compounds belonging to the RNi5 series was calculated using a Hamiltonian including the crystalline electrical field, exchangeExpand
Investigations on magnetic refrigeration: Application to RNi2 (R=Nd, Gd, Tb, Dy, Ho, and Er)
In this article we report the thermodynamic investigations on the Ericsson cycle with application on RNi2 (R=Nd, Gd, Tb, Dy, Ho, and Er) series. Besides the Zeeman and exchange interactions, theseExpand
Magnetocaloric effect in rare-earth pseudobinary Er(Co1-cNic)2
In this paper we study the magnetocaloric effect in the Laves phase pseudobinary Er(Co 1 - c Ni c ) 2 . We use a theoretical model, considering both the localized spins of rare-earth ions and theExpand
Barocaloric and magnetocaloric effects in La(Fe0.89Si0.11)13
In this paper we calculate the barocaloric and the magnetocaloric effects under applied pressure in the compound La(Fe0.89Si0.11)13. We use a microscopical model in the framework of the band theoryExpand
The giant anisotropic magnetocaloric effect in DyAl2
We report on calculations of the anisotropic magnetocaloric effect in DyAl2 using a model Hamiltonian including crystalline electrical field effects. The anisotropic effect is produced by theExpand
Entropy change upon magnetic field and pressure variations
In this letter it is theoretically discussed the magnetocaloric effect under applied pressure and the barocaloric effect under applied magnetic field in compounds undergoing a first order magneticExpand
Analytical model to understand the colossal magnetocaloric effect
We report the theoretical investigations on the colossal magnetocaloric effect using a simple model that couples the lattice entropy and magnetic entropy through the magnetoelastic deformation.Expand