Eur. Phys. J. B (2015) 88: 271
https://doi.org/10.1140/epjb/e2015-60527-1

Regular Article

Microwave characterization of Pb_1−xCa_xFe_0.5Nb_0.5O₃ multiferroics at X-band^*

¹ Department of Electronics and Communication Engineering, Rayat Bahra Institute of Engineering and Nanotechnology, 146104 Hoshiarpur, India
² Department of Electronics Technology, Guru Nanak Dev University, Amritsar, India

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Received: 30 June 2015
Received in final form: 30 July 2015
Published online: 21 October 2015

Abstract

The microwave characteristics of Pb_1−xCa_xFe_0.5Nb_0.5O₃ multiferroics (x = 0.0, 0.4, 0.45, 0.5, 0.55, 0.6), have been investigated as a function of frequency and substitution. The results depict −13.99 dB reflection loss at 11.65 GHz in composition x = 0.6. Microwave absorption is enhanced with substitution of Ca²⁺ ions and undoped composition 0.0 behaves as electromagnetic shield. The model governing microwave absorption is discussed and different compositions for electromagnetic applications have been suggested.