Results 191 to 200 of about 6,121 (227)

Magnetocaloric effect in manganites

Journal of Experimental and Theoretical Physics, 2012
The magnetocaloric effect (MCE) in La1 − xSrxMnO3, Sm0.55Sr0.45MnO3, and PrBaMn2O6 compounds is studied. The maximum values of MCE (ΔTmax) determined by a direct method in the second and third compositions and in La0.9Sr0.1MnO3 are found to be much lower than those calculated from the change of the magnetic part of entropy in the Curie temperature (TC)
L. I. Koroleva, D. M. Zashchirinskii, A. S. Morozov, R. Szymczak   +3 more
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Review of the magnetocaloric effect in manganite materials

Journal of Magnetism and Magnetic Materials, 2007
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Manh‐Huong Phan, Seong‐Cho Yu
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Review on Magnetocaloric Effect and Materials

Journal of Superconductivity and Novel Magnetism, 2018
A detailed discussion of magnetocaloric properties of distinct materials is a vital aspect in magnetic refrigeration technology. This review paper deals with all kinds of magnetocaloric materials such as ferromagnetic perovskites, glass ceramics, oxide-based composites and spinel ferrites.
N Suresh Kumar, K Chandra Babu Naidu, Kumar N Suresh   +2 more
exaly   +2 more sources

Oscillating magnetocaloric effect

Applied Physics Letters, 2011
This Letter presents the oscillatory behavior found in the magnetic entropy change of diamagnetic materials. We show that this quantity depends on the oscillating term and, as a consequence, the magnetocaloric potential can be tuned as either inverse or normal, depending on the value of the magnetic field change.
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Engineering molecular rings for magnetocaloric effect

Applied Physics Letters, 2004
By substituting one Cr3+(s=3/2) with Cd2+(s=0) in molecular octanuclear rings, a diluted ensemble of identical nanomagnets with a S=3/2 ground state, weakly split in zero field, is obtained. The lattice contribution and the essential parameters of the spin Hamiltonian of these uncompensated antiferromagnetic cyclic spin systems are determined by ...
Affronte M, Ghirri A, Carretta S, Amoretti G, Piligkos S, Winpenny REP, Timco GA   +6 more
openaire   +3 more sources

Electric Field Control of the Magnetocaloric Effect

Advanced Materials, 2014
Through strain-mediated magnetoelectric coupling, it is demonstrated that the magnetocaloric effect of a ferromagnetic shape-memory alloy can be controlled by an electric field. Large hysteresis and the limited operating temperature region are effectively overcome by applying an electric field on a laminate comprising a piezoelectric and the alloy ...
Yuan-Yuan, Gong, Dun-Hui, Wang, Qing-Qi, Cao, En-Ke, Liu, Jian, Liu, You-Wei, Du   +5 more
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Magnetocaloric Effect in Ferromagnetic and Superconducting Materials

physica status solidi (b), 1998
Computer studies are made illustrating the similarities of the interesting change of sign in the magnetocaloric effect between the vortex lattice in superconductors and a system of interacting magnons and phonons in ferromagnetic materials. This change happens in the superconducting system when the external magnetic field approaches a critical value ...
Svobodny, Thomas P., Kalva, Z.
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The magnetocaloric effect in dysprosium

Journal of Applied Physics, 1979
The magnetocaloric effect in polycrystalline Dy was measured between 84 and 280 K in measuring fields from 1 to 7 T. These adiabatic temperature changes reflect structural changes in Dy with applied field and temperature, and include the first magnetocaloric data for a helical antiferromagnet.
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Magnetocaloric effect in La1.25Sr0.75MnCoO6

Journal of Thermal Analysis and Calorimetry, 2013
The magnetocaloric properties of La1.25Sr0.75MnCoO6 (LSCM) manganites that were synthesized at 750 and 1,300 °C have been investigated. It is found that magnetic entropy change distribution of the LSCM is much more uniform than that of gadolinium. This feature is desirable for an Ericson-cycle magnetic refrigerator.
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Magnetocaloric effect in

Journal of Magnetism and Magnetic Materials, 2006
M.B. Gomes, N.A. de Oliveira
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