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SACHIN KUMAR GODARA
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Volume 45 All articles Published: 13 December 2022 Article ID 0248
ANJORI SHARMA IBRAHIM MOHAMMED SACHIN KUMAR GODARA AJEET KUMAR SRIVASTAVA
The composite of yttrium iron garnet (YIG) and erbium iron garnet (ErIG; i.e., ErIG(
x )/YIG(1-x ) (x = 0.5)) was prepared by facile mechanical blending method. X-ray diffraction study reveals the pure phase formation of YIG, ErIG and ErIG(x )/YIG(1-x ). Field-emission scanning electron microscope micrographs were used to calculate grain size of the samples. Impedance analyser was used to study dielectric property of YIG, ErIG and ErIG(x )/YIG(1-x ). The composite ErIG(x )/YIG(1-x ) has larger values of dielectric constant and lower values of tangent losses ${\sim}$0.05 at 1 MHz. Calculated ac conductivity of ErIG(x )/YIG(1-x ) composite is low, which implies its resistive nature. The value of coercivity ($H_c$) is lesser and value of magnetic saturation ($M_s$) is high for composite as compare to parent YIG and ErIG. The calculated value of microwave operating frequency (${\omega}_m$) for composite was found to be 4.5 GHz. The good dielectric property, low dielectric losses and enhanced magnetic property of ErIG(x )/YIG(1-x ) composite suggest a better option over parent garnet ferrites to be used in microwave devices such as dielectric antennas.
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Bulletin of Materials Science
Volume 46, 2023
All articles
Continuous Article Publishing mode
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Dr Shanti Swarup Bhatnagar for Science and Technology
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