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Growth and characterization of bismuth magnesium titanate Bi(Mg$$_{1/2}$$Ti$$_{1/2}$$)0$$_3$$

Yoneda, Yasuhiro   ; Saito, Hiroyuki; Yoshii, Kenji  ; Nishida, Takashi*; Hayakawa, Hironori*; Ikeda, Naoshi*

Polycrystalline Bi(Mg$$_{1/2}$$Ti$$_{1/2}$$)O$$_3$$ samples were prepared under high pressure. A mixed powder of Bi$$_2$$O$$_3$$, Ti$$_2$$O$$_3$$ and MgO with a prescribed ratio was packed into platinum cell and was heated a cubic anvil-type apparatus at 6.5 GPa and 1000 $$^circ$$C. The obtained samples were characterized by powder X-ray diffraction measurements. Although some impurity peaks existed, the main peaks were perovskite peaks. The structure of Bi(Mg$$_{1/2}$$Ti$$_{1/2}$$)O$$_3$$ is rhombohedral, as well as BiFeO$$_3$$. The D-E hysteresis loop was not saturated due to the impurities, but the possibility as ferroelectric can be expected enough.

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