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Radiation losses in the microwave Ku band in magneto-electric nanocomposites #MMPMID26425421
Kaur T; Kumar S; Sharma J; Srivastava AK
Beilstein J Nanotechnol 2015[]; 6 (ä): 1700-7 PMID26425421show ga
A study on radiation losses in conducting polymer nanocomposites, namely La?Co-substituted barium hexaferrite and polyaniline, is presented. The study was performed by means of a vector network analyser, X-ray diffraction, Fourier transform infrared spectroscopy, transmission electron microscopy, electron spin resonance spectroscopy and a vibrating sample magnetometer. It is found that the maximum loss occurs at 17.9 GHz (?23.10 dB, 99% loss) which is due to the composition of a conducting polymer and a suitable magnetic material. A significant role of polyaniline has been observed in ESR. The influence of the magnetic properties on the radiation losses is explained. Further studies revealed that the prepared material is a nanocomposite. FTIR spectra show the presence of expected chemical structures such as C?H bonds in a ring system at 1512 cm?1.