Excellent microwave absorption performance and wideband response of Pr1−xSrxMnO3 powders fabricated by sol–gel technique

Confronting with the increased severe electromagnetic waves pollution, synthesis of perovskite-type oxides, like PrMnO 3 , microwave-absorbing materials with strong reflection loss (RL) and broad effective absorption bandwidth have attracted extensive attention because of their potential application in all kinds of areas. Herein, Pr 1−x Sr x MnO 3 perovskites with different doping Sr-content were synthesized through the sol–gel strategy. The effects of Sr doping on microstructure and magnetic properties was studied by the corresponding equipment, respectively. Microwave absorption properties were investigated according to the transmission line theory. Simulation studies show that Pr 0.9 Sr 0.1 MnO 3 sample in a wax matrix exhibits the strongest reflection loss of −50.21 dB at 12.08 GHz at a thickness of 2.5 mm. Its effective absorption bandwidth (RL