Magnetocaloric properties of manganites La1-x(Ag, K)(x)MnO3

作者：Gamzatov A G^*; Mankevich A S

来源：Bulletin of the Lebedev Physics Institute, 2009, 36(12): 367-368.

DOI：10.3103/S1068335609120082

• magnetocaloric effect
• metal-doped manganites

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 Delta H = 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.

• 出版日期2009-12