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Journal Articles

Crystal and magnetic structures and their temperature dependence of Co$$_{2}$$Z-type hexaferrite (Ba, Sr)$$_{3}$$Co$$_{2}$$Fe$$_{24}$$O$$_{41}$$ by high-temperature neutron diffraction

Takada, Yukio*; Nakagawa, Takashi*; Tokunaga, Masatoshi*; Fukuta, Yasunari*; Tanaka, Takayoshi*; Yamamoto, Takao*; Tachibana, Takeshi*; Kawano, Shinji*; Ishii, Yoshinobu; Igawa, Naoki

Journal of Applied Physics, 100(4), p.043904_1 - 043904_7, 2006/08

https://doi.org/10.1063/1.2204334
 Times Cited Count：71 Percentile：89.19(Physics, Applied)

no abstracts in English

Journal Articles

Temperature dependence of magnetic moment orientation in Co$$_{2}$$Z-type hexaferrite estimated by high-temperature neutron diffraction

Takada, Yukio*; Nakagawa, Takashi*; Fukuta, Yasunari*; Tokunaga, Masatoshi*; Yamamoto, Takao*; Tachibana, Takeshi*; Kawano, Shinji*; Igawa, Naoki; Ishii, Yoshinobu

Japanese Journal of Applied Physics, 44(5A), p.3151 - 3156, 2005/05

https://doi.org/10.1143/JJAP.44.3151
 Times Cited Count：4 Percentile：13.67(Physics, Applied)

We investigated the correlation between the thremomagnetic curve of Co$$_{2}$$Z-Type hexagonal barium ferrite, Ba$$_{3}$$Co$$_{1.8}$$Fe$$_{24.2}$$O$$_{41}$$ and its magnetic moment direction. The thermomagnetic curve shows two significant magnetization slumps at 540K and 680K. High-temperature neutron diffraction experiment and Rietveld analyses indicate that temperature rise from 523 to 573K makes the magnetic moments turn to the c-axis from a direction parallel to the c-plane most significantly.The change in average orientation of the magnetic moments must be induced by the disappearence of the contribution of cobalt to magnetism in this temperature.

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