抄録
The balanced temperatures of La0.676Sr0.358Mn0.922Cu0.044O3 perovskite at 56 Oe amplitude of alternating magnetic field of different frequencies were investigated. The balanced temperatures at 600, 800 and 1000 kHz were 38.0, 39.0 and 39.7°C, respectively. Heating powers of the perovskite were also estimated from minor hysteresis loops data, which were measured at various temperatures under different amplitudes of magnetic fields (14, 28, 42, 56 and 70 Oe). The estimated heating powers under alternating field of different frequencies at the respective balanced temperatures were 0.06 W. This result shows that heat dissipation from the experimental system used in the heating ability experiment is 0.06 W. When the perovskite is set in the part where heat dissipation is known, we can estimate the balanced temperature in arbitrary frequency and magnetic field strength.
