Magnetocaloric and barocaloric effects: Theoretical description and trends

@article{Oliveira2014MagnetocaloricAB,
  title={Magnetocaloric and barocaloric effects: Theoretical description and trends},
  author={Nilson de Oliveira and Pedro Jorge von Ranke and Amos Troper},
  journal={International Journal of Refrigeration-revue Internationale Du Froid},
  year={2014},
  volume={37},
  pages={237-248}
}
Abstract In this review paper we present a theoretical description of the magnetocaloric and barocaloric effects in metallic compounds. The theoretical formulation is separated in two categories namely, [1] systems whose magnetism is due to localized magnetic moments [2] systems whose magnetism is due to itinerant electrons. In both cases we perform systematic analysis of the magnetocaloric and barocaloric quantities in terms of the model parameters. Besides that, an application has been made… Expand
Theoretical investigation on the barocaloric and magnetocaloric properties in the Gd5Si2Ge2 compound
We report a theoretical microscopic model to discuss the barocaloric and magnetocaloric effects in the Gd5Si2Ge2 compound based on the recent experimental data by Yuce et al. [Appl. Phys. Lett. 101,Expand
On the magnetocaloric effect in single crystals
Abstract In this paper, we theoretically discuss the magnetocaloric effect in single crystals whose magnetization is mainly due to localized electrons. To this end, we use a model of local magneticExpand
Rotating magnetocaloric effect in HoAl2 single crystal
Abstract In this paper we theoretically discuss the rotating magnetocaloric effect in HoAl 2 single crystal. In order to do that, we use a model Hamiltonian of interacting magnetic moments includingExpand
Anisotropic magnetocaloric effect in TmAl2 single crystal
In this paper, we theoretically discuss the anisotropic magnetocaloric effect in TmAl2 single crystal. To this end, we use a model Hamiltonian of interacting magnetic moments including an extra termExpand
Giant rotating magnetocaloric effect in RNi 5 single crystals
Abstract In this paper we theoretically discuss the rotating magnetocaloric effect in RNi5 ( R = Nd , Tb , Dy , Er ) single crystals, by using a model of interacting magnetic moments including theExpand
Anisotropy effect on the caloric properties of NdAl 2 single crystal
Abstract In this paper we theoretically discuss the effect of anisotropy on the magnetocaloric properties of NdAl 2 single crystal. To this end, we use a model Hamiltonian of interacting magneticExpand
Normal and inverse magnetocaloric effect in magnetic multilayers with antiferromagnetic interlayer coupling.
The thermodynamics of a spin-1/2 magnetic multilayer system with antiferromagnetic interplanar couplings is studied using the pair approximation method. Special attention is paid to magnetocaloricExpand
Magnetocaloric effect in (TbcR1-c)Co2 (R=Er and Ho)
Abstract In this paper we theoretically discuss the magnetocaloric effect in ( Tb c R 1 - c ) Co 2 (R = Er and Ho). To this end, we use a model Hamiltonian in which are included the 4 f electronsExpand
The influence of ferrimagnetic structure on magnetocaloric effect in Dy2Fe10Al7 compound
Abstract This paper presents the study of the magnetic properties and magnetocaloric effect (MCE) of the rare-earth ferrimagnetic Dy 2 Fe 10 Al 7 compound. The field and temperature dependencies ofExpand
Thermodynamic model of a solid with RKKY interaction and magnetoelastic coupling
Abstract Thermodynamic description of a model system with magnetoelastic coupling is presented. The elastic, vibrational, electronic and magnetic energy contributions are taken into account. TheExpand
...
1
2
3
...

References

SHOWING 1-10 OF 43 REFERENCES
Magnetocaloric effect in transition metals based compounds: a theoretical approach
Abstract.In this paper we study the magnetocaloric effect in transition metals based compounds. For this purpose, we use a microscopical model, based on the band theory of magnetism, where theExpand
Giant magnetocaloric and barocaloric effects in R5Si2Ge2 (R = Tb, Gd)
In this paper, we theoretically discuss the magnetocaloric effect under applied pressure and the barocaloric effect in the compounds Gd5Si2Ge2 and Tb5Si2Ge2. For this purpose, we use a model ofExpand
Anomalous barocaloric effect in solid magnetic materials.
TLDR
This paper systematically discusses the barocaloric effect in solid magnetic materials undergoing both second and first order phase transition using a model of localized magnetic moments, including the magnetoelastic coupling and the Zeemann interaction. Expand
On the magnetocaloric effect of itinerant electron systems with first order transition
In this paper we make a systematic discussion about the magnetocaloric effect of itinerant electron systems with first order transition. For this purpose, we use a microscopical model based in theExpand
Pressure-induced colossal magnetocaloric effect in MnAs.
To present day, the maximum magnetocaloric effect (MCE) at room temperature for a magnetic field change of 5 T is 40 J/(kg K) for MnAs. In this Letter we present colossal MCE measurements on MnAsExpand
Magnetocaloric properties of compounds with first order phase transition: Hysteresis effect
Abstract In this paper we theoretically discuss the magnetocaloric effect in compounds undergoing first order phase transition, taking into account the hysteresis effect. For this purpose we use aExpand
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
A New Approach to Itinerant-Electron Metamagnetism
Itinerant-Electron Metamagnetism (IEM) is characterized by a first-order transition occurring, under the effect of varying external parameters such as temperature, magnetic field or pressure, betweenExpand
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
Pressure enhancement of the giant magnetocaloric effect in Tb5Si2Ge2.
TLDR
Evidence is presented that the high-tem temperature second-order ferromagnetic transition can be coupled with the low-temperature first- order structural phase change into a single first-order magnetic-crystallographic transformation at and above a tricritical point in the vicinity of 8.6 kbar. Expand
...
1
2
3
4
5
...