Nanosized hexagonal Mn- and Ga-doped BaTiO3 with reduced structural phase transition temperature

作者：Natsui Hidesada^*; Moriyoshi Chikako; Yoshida Fumiko; Kuroiwa Yoshihiro; Ishii Tatsuya; Odawara Osamu; Yu Jianding; Yoda Shinichi

来源：Applied Physics Letters, 2011, 98(13): 132909.

DOI：10.1063/1.3573810

Nanosized hexagonal BaTiO3 particles were synthesized at 1373 K, grain growth was prevented by reducing the temperature of the cubic-hexagonal phase transition. Crystal structures of nanosized hexagonal Mn- and Ga-doped BaTiO3 were studied by high-energy synchrotron radiation powder diffraction at BL02B2 of SPring-8. Substituting the trivalent cations of Mn and Ga for Ti weakened the Mn-O and Ga-O bonding forces and stabilized the hexagonal phase, which reduced the phase transition temperature. These nanoparticles can be used in the manufacture of electronic components, owing to the properties of hexagonal BaTiO3.

• 出版日期2011-3-28