Abstract
The temperature and magnetic-field dependences of the magnetocaloric effect in manganites La1−x Ag x MnO3 (x = 0.1; 0.15; 0.2) and La1−x K x MnO3 (x = 0.1; 0.11; 0.13; 0.15; 0.175) were studied by a direct method. Large changes in the sample temperature were detected as a magnetic field changed by ΔH = 10 kOe. Temperatures of the magnetocaloric effect maxima are near room temperatures. Field dependences of the magnetocaloric effect show no signs of saturation in fields to 30 kOe.
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Original Russian Text © A.G. Gamzatov, A.S. Mankevich, 2009, published in Kratkie Soobshcheniya po Fizike, 2009, Vol. 36, No. 12, pp. 34–36.
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Gamzatov, A.G., Mankevich, A.S. Magnetocaloric properties of manganites La1−x(Ag, K)xMnO3 . Bull. Lebedev Phys. Inst. 36, 367–368 (2009). https://doi.org/10.3103/S1068335609120082
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DOI: https://doi.org/10.3103/S1068335609120082