Physics – Condensed Matter – Materials Science
Scientific paper
2012-02-17
Solid State Communications 151 (2011) 1820-1823
Physics
Condensed Matter
Materials Science
10 pages, 6 figures
Scientific paper
10.1016/j.ssc.2011.08.018
The magnetocaloric effect (MCE) in the A-site ordered manganite NdBaMn2O6 is studied. The MCE in this compound has an anomalous behavior. In low magnetic fields, the abrupt transitions between direct and inverse magnetocaloric effect are observed. In a relatively strong magnetic field H=11 kOe the direct and inverse effects are observed only at cooling, while the heating mode reveals only an inverse MCE. The value of the MCE (-{\Delta}S=0.7 J/kg K and {\Delta}S= 1.02 J/kg K for {\Delta}H=11 kOe) does not reach high values, but the proximity of the effects occurring at room temperatures expects the use of both effects in the magnetic cooling technology.
Aliev A. M.
Gamzatov A. G.
Kalitka V. S.
Kaul A. R.
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