4 papers · 1 filter
Finite-temperature micromagnetic model bridging atomic- and macro-scale magnetism
R. Kiefe, J. S. Amaral
A multi-scale finite-temperature micromagnetic model is presented, based on the Landau-Lifshitz equation and the Bernoulli differential equation. This model accurately reproduces c…
Rotating Magnetocaloric Effect in Sintered La(Fe,Mn,Si)H Plates
Rafael Almeida, Tomás Ventura, Ricardo Moura Costa Pinto +6
La-Fe-Si-based alloys are among the most application-ready magnetocaloric materials for room-temperature magnetic refrigeration. Powder metallurgy methods have been previously demo…
Rotating Magnetocaloric Effect in First-order Phase Transition Material Gd5Si2Ge2
Rafael Almeida, Rodrigo Kiefe, Ricardo Moura Costa Pinto +5
The rotating magnetocaloric effect (RMCE) induced by self-demagnetization has been investigated in the giant magnetocaloric effect (GMCE) material GdSiGe. This shape-de…
On correctly assessing the reversibility of the magnetocaloric effect from indirect measurements
R. Kiefe, R. Almeida, J. H. Belo +1
The adiabatic temperature change () of a magnetic refrigerant can be indirectly estimated through field () and temperature () dependent magnetization () and speci…