Bibliographic Details
| Title: |
Magnetocaloric properties in the Cr-doped La0.7Sr0.3MnO3 manganites |
| Authors: |
Kallel, Nabil Nabil.Kallel@fsm.rnu.tn, Kallel, Sami1, Hagaza, Ahmed1, Oumezzine, Mohamed1 |
| Source: |
Physica B. Feb2009, Vol. 404 Issue 2, p285-288. 4p. |
| Subjects: |
Magnetic materials, Manganite, Properties of matter, Polycrystals, Semiconductor doping, Curie temperature, Entropy, Perovskite |
| Abstract: |
Abstract: Single-phase polycrystalline samples of La0.7Sr0.3Mn1– x Cr x O3 with nominal composition of x=0.00, 0.20, 0.40 and 0.50 were prepared by a conventional solid-state reaction method in air. Investigations of magnetization were carried out in the temperature range 5–400K and magnetic field range 0–8T. It was found that the Curie temperature T C decreases with increasing x and the maximum magnetic entropy change (−ΔS M) for x=0.20 is ∼1.203 and ∼2.653J/kgK, respectively for 2 and 6T magnetic field near the temperature of 280K. [Copyright &y& Elsevier] |
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| Database: |
Engineering Source |
