title: Radiation losses in the microwave Ku band in magneto-electric nanocomposites.
abstract: 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).
authors.affiliation: Department of Physics, Lovely Professional University, Phagwara-144411, India.
authors.forename: Talwinder
authors.initials: T
authors.lastname: Kaur
authors.affiliation: Department of Chemistry, Guru Nanak Dev University, Amritsar-143005, India.
authors.forename: Sachin
authors.initials: S
authors.lastname: Kumar
authors.affiliation: Department of Physics, Lovely Professional University, Phagwara-144411, India.
authors.forename: Jyoti
authors.initials: J
authors.lastname: Sharma
authors.affiliation: Department of Physics, Lovely Professional University, Phagwara-144411, India.
authors.forename: A K
authors.initials: AK
authors.lastname: Srivastava
keywords: emulsion polymerization; magneto-electric composite; radiation loss; vector network analyser