Thermal emittance changes at the charge ordering transition of (Sm0.35Ca0.65)MnO3

Laffez, P.; Napierala, C.; Zaghrioui, M.; Ta Phuoc, V.; Hassini, A.; Ammar, M. R.
October 2008
Applied Physics Letters;10/13/2008, Vol. 93 Issue 15, p151910
Academic Journal
The reversible charge ordering transition of (Sm1-x,Cax)MnO3 is associated with strong changes in electrical, magnetic, and infrared properties. In this work, normal spectral emissivity is calculated from infrared reflectance of bulk polished ceramics. Emissivity versus temperature shows a sharp variation at the charge ordering transition near room temperature. By comparing the apparent temperature of the sample with the absolute temperature, we show that Sm0.35Ca0.65MnO3 is a good candidate for infrared furtivity around room temperature.


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