Absorption of microwaves in La1−xSrxMnO3 manganese powders over a wide bandwidth
作者： G. Li , G.-G. Hu , H.-D. Zhou , X.-J. Fan , X.-G. Li
DOI: 10.1063/1.1415053
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摘要: We present the frequency dependence of microwave-absorbing properties La1−xSrxMnO3 (x=0.4, 0.5, 0.6, and 0.7) powders at room temperature. The absorbing change gradually with x in range 8–12 GHz. optimal absorption can be achieved for a x=0.4 sample its microwave loss peak value is about 25 dB. Further experimental results show that attributed to magnetic dielectric losses corresponds maximum tangent tan δe near 10.5 Furthermore, oxides mixed carbonic fiber Y-type planar hexagonal ferrite have been rudimentarily studied. Results these additives greatly enhance oxides.
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