Study of magnetic entropy change in La0.65Sr0.35Cu0.1Mn0.9O3 complex perovskite |
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| Authors: | M S Anwar Shalendra Kumar Faheem Ahmed Si Nae Heo G W Kim Bon Heun Koo |
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| Affiliation: | 1. School of Nano and Advanced Materials Engineering, Changwon National University, Changwon, South Korea
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| Abstract: | The magnetocaloric properties of new complex magnetic material La0.65Sr0.35Cu0.1Mn0.9O3, suitable for the Ericsson cycle, have been investigated. For this material, the effect of Cu doping can be attributed to a combination of doping disorder, Cu-Mn super exchange interactions and a site-percolation mechanism, which suppress the metallic conduction and Curie temperature. The Curie temperature decreases to 355 K. The magnetocaloric study exposes a comparable value of the magnetic entropy change for La0.65Sr0.35Cu0.1Mn0.9O3 sample, the value of the maximum entropy change, increases from 1.132 J/kgK to 3.11 J/kgK as magnetic field increases from 1 T to 4 T. A large relative cooling power (RCP) has been observed for La0.65Sr0.35Cu0.1Mn0.9O3. As a result, the studied sample can be considered as potential material for magnetic refrigeration. |
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