Magnetic Properties of YIG/LaFeO₃- Composites for Electromagnetic Wave Absorption Marzuki Naibaho, Ameer Noor Affan, Nova Maharani, Masno Ginting, and Januar Widakdo
1 Department of Physics, Universitas Indonesia, Depok 16424, Indonesia
2 Research Center for Energy Materials (PRME) - National Research and Innovation Agency (BRIN), Complex Puspiptek Building 440-441, Tangerang-South, Banten, Indonesia 15314.
Abstract
Yttrium iron garnet (YIG)/LaFeO₃- composites are considered promising candidates for electromagnetic wave absorbing materials due to their excellent magnetic properties and dielectric behavior. In this study, YIG/LaFeO₃- composites were synthesized and characterized to evaluate their magnetic properties and electromagnetic wave absorption performance. Magnetic characterization was carried out using a Vibrating Sample Magnetometer (VSM) to determine the saturation magnetization, remanence, and coercivity values. The results indicate that the composites exhibit ferromagnetic behavior, which contributes to magnetic loss mechanisms during electromagnetic wave absorption. Furthermore, the electromagnetic wave absorption properties were investigated using a Vector Network Analyzer (VNA) over a specific frequency range. The measurements revealed that the YIG/LaFeO₃- composites achieved good reflection loss performance due to the synergistic effect of magnetic loss and impedance matching. These findings demonstrate that YIG/LaFeO₃- composites have strong potential for application as electromagnetic wave absorber materials in modern electronic and telecommunication devices.
Keywords: YIG/LaFeO3, Magnetic properties, Microwave absorbtion properties
