Impact of Stoichiometry and Sintering Temperature on Magnetic Properties of Y3MnxAl0.83−xFe4.17O12 Ferrites

Autor: Jing-Yi Huang, Yung-Hsiung Hung, Ching-Chien Huang, Kuo Ming-Feng
Rok vydání: 2014
Předmět:
Zdroj: IEEE Transactions on Magnetics. 50:1-4
ISSN: 1941-0069
0018-9464
DOI: 10.1109/tmag.2014.2310703
Popis: A study was made to evaluate the impacts of stoichiometry and sintering temperature on hysteresis properties of an Mn, Al substituted Y 3 Fe 5 O 12 (YIG) ferrite. The Mn, Al substituted YIG ferrite, (Y 3 )(Mn x Al 0.83-x Fe 4.17 )O 12 showed the best properties for application in 2-4 GHz frequency range (i.e., S-band) latching phase shifter at x =0.13 . Magnetic characteristics were further improved by sintering process. The increasing sintering temperature increases saturation magnetization (4π M s ), remanence (B r ), and squareness ratio, while decreasing the coercivity (H c ). In addition, good ferromagnetic resonance linewidth (i.e., ΔH) properties were also realized as 38.6 Oe at 3.2 GHz. Based on above magnetic characteristics, (Y 3 )(Mn x Al 0.83-x Fe 4.17 )O 12 is a good candidate for practical latch phase shifter applications at S-band.
Databáze: OpenAIRE