Magnetocaloric effect in LSMO synthesized by combustion route

Magnetocaloric effect in LSMO synthesized by combustion route

A series of polycrystalline samples of La 1− x Sr x MnO 3 ( x = 0.1, 0.2 and 0.3) have been synthesized by combustion route. These samples have been characterized structurally, morphologically and magnetically by X-ray diffraction, scanning electron microscopy and SQUID, respectively. The order of m...

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Veröffentlicht in:Materials chemistry and physics 2011-09, Vol.129 (1), p.180-182
Hauptverfasser: Shinde, K.P., Pawar, S.S., Deshpande, N.G., Kim, J.M., Lee, Y.P., Pawar, S.H.
Format: Artikel
Sprache:eng
Schlagworte:
Chemical synthesis
Combustion
Diffraction
Entropy
Ferromagnetism
Magnetic properties
Magnetometer
Mathematical analysis
Oxides
SQUIDs
Strontium
X-rays
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Zusammenfassung:A series of polycrystalline samples of La 1− x Sr x MnO 3 ( x = 0.1, 0.2 and 0.3) have been synthesized by combustion route. These samples have been characterized structurally, morphologically and magnetically by X-ray diffraction, scanning electron microscopy and SQUID, respectively. The order of magnetic phase transition is revealed to be the second order from ferromagnetic to paramagnetic state. The maximum magnetic entropy changes (Δ S M), calculated from the M–H measurements, is 0.13, 0.16 and 0.20 J/kg K for La 0.9Sr 0.1MnO 3, La 0.8Sr 0.2MnO 3 and La 0.7Sr 0.3MnO 3, respectively.
ISSN:0254-0584
1879-3312
DOI:10.1016/j.matchemphys.2011.03.069