Magnetization and Microwave Absorption Properties of La0.67 Sr0.33 MnO3 with Different Particle Size
La 0.67 Sr 0.33 MnO 3 particles with different particle size have been prepared by sol-gel method. The structure, magnetization and microwave absorption properties have been investigated. The results show that the particle size can be controlled by sinter temperature. The peaks of the maximum reflection loss (RL) move to higher frequency regions with increasing particle size. The value of the maximum RL is -32 dB at 10.2GHz with a particle size of 58.5nm. The bandwidth with a RL exceeding -8dB reached 1.6GHz in the whole measured frequency range, suggesting that La 0.67 Sr 0.33 MnO 3 particles are promising for application as a wideband and strong absorption building microwave absorber.
Hui Li, Yan Feng Liu, Ming Guo, Rui Zhang and Jing Du
Y. L. Cheng et al., "Magnetization and Microwave Absorption Properties of La0.67 Sr0.33 MnO3 with Different Particle Size", Advanced Materials Research, Vols. 374-377, pp. 1541-1544, 2012