Journal ArticleDOI
Magnetocaloric effect in the pseudobinary Ho(Co1−cRhc)2
TLDR
In this paper, the magnetocaloric effect in the Laves phase pseudobinary Ho(Co1−cRhc)2 was studied using a theoretical model, considering both the localized spins of rare earth ions and the itinerant electrons of the transition elements.About:
This article is published in Journal of Magnetism and Magnetic Materials.The article was published on 2004-05-01. It has received 8 citations till now. The article focuses on the topics: Coherent potential approximation & Laves phase.read more
Citations
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Journal ArticleDOI
Recent developments in magnetocaloric materials
TL;DR: The recent literature concerning the magnetocaloric effect (MCE) has been reviewed and correlations have been made comparing the behaviours of the different families of magnetic materials which exhibit large or unusual MCE values.
Journal ArticleDOI
Magnetocaloric effect: From materials research to refrigeration devices
TL;DR: The magnetocaloric effect and its most straightforward application, magnetic refrigeration, are topics of current interest due to the potential improvement of energy efficiency of cooling and temperature control systems, in combination with other environmental benefits associated to a technology that does not rely on the compression/expansion of harmful gases.
Journal ArticleDOI
Theoretical aspects of the magnetocaloric effect
N.A. de Oliveira,P.J. von Ranke +1 more
TL;DR: In this paper, the theoretical aspects of the magnetocaloric effect in rare earth metals and their alloys as well as in transition metal based compounds are discussed by using model Hamiltonians of interacting localized magnetic moments.
Journal ArticleDOI
Magnetocaloric effect in Ho5Pd2: Evidence of large cooling power
TL;DR: In this paper, the magnetocaloric effect has been studied on polycrystalline Ho5Pd2 compound, which undergoes magnetic field-induced first order metamagnetic transition from antiferromagnetic to ferromagnetic state below antiferrous transition temperature.
Journal ArticleDOI
Magnetocaloric effect in Gd(Pd1-xRhx)
M.B. Gomes,N.A. de Oliveira +1 more
TL;DR: In this article, the magnetocaloric effect in the compound Gd (Pd 1 - x Rh x ) by using the Heisenberg Hamiltonian where the indirect exchange interaction parameter between localized spins depends on the Rh concentration and the spin-spin interaction is treated in the molecular field approximation.
References
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Journal ArticleDOI
Giant Magnetocaloric Effect in Gd 5 \(Si 2 Ge 2 \)
TL;DR: An extremely large magnetic entropy change has been discovered in magnetic materials when subjected to a change in the magnetic field as mentioned in this paper, which exceeds the reversible magnetocaloric effect in any known magnetic material by at least a factor of 2.
Journal ArticleDOI
A Reformulation of the Coherent Potential Approximation and Its Applications
TL;DR: In this paper, the authors give a formalism to calculate from the first principle the electronic structure of substitutionally disordered alloys in the coherent potential approximation (CPA), based on the t-matrix of the muffin-tin potential and extend the KKR method of the energy band calculation to concentrated alloys.
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Influence of the crystalline electrical field on the magnetocaloric effect of DyAl 2 , ErAl 2 , and DyNi 2
TL;DR: In this article, the crystal-field parameters from inelastic neutron scattering were used to make an estimate of the crystal field parameters for Ω( √ n 2 ) of ℓ n 2, where n is the number of atoms in the sample.
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Magnetocaloric effect in the intermetallic compounds RCo 2 (R=Dy,Ho,Er)
TL;DR: In this article, the magnetocaloric effect in rare-earth cobalt intermetallic compounds RCo 2 (R=Dy, Ho, Er) was studied using a theoretical model, in which the localized spins of the rare earth ions were immersed into an effective subsystem of the itinerant electrons.
Journal ArticleDOI
Magnetocaloric effect in HoCo2 compound
S.A. Nikitin,A.M. Tishin +1 more
TL;DR: In this article, the magnetocaloric effect in a HoCo 2 compound has been investigated over the temperature range 4.2 -150 K and in magnetic fields up to 6 T. At the magnetic phase temperature T = 82 K at 6 T, ΔT equal to 5.1 K was observed.