Syntheses and Crystallographic Data of the Homologous Compounds InFeO3(ZnO)m, (m = 1, 2, 3, 7, 11, 13, 15, and 19) and Fe2O3(ZnO)m (m = 8 and 9) in the In2O3-ZnFe2O4-ZnO System

Synthesis of natural superlattice structure in the binary ZnO–Fe₂O₃ system by microwave irradiation

“…Especially, the formation of superstructure with low m value (m = 3) is surprising because the formation of homologous compounds, Fe 2 O 3 (ZnO) m , were believed to be limited in the vicinity of the wurtzite-type ZnO phase (m ² 8) in previous study. 6) It is not yet cleared that why Fe 2 O 3 (ZnO) m compound with low m value could be formed easily by microwave processing. However it is not doubtful that the non-equilibrium nature of microwave selective heating, as well as rapid heating and quenching effects, plays a key role to form the superstructure.…”

“…3), 4) Li et al studied a series of compounds, InMO 3 (ZnO) m (M = In, Fe, Ga, and Al), and suggested that the superlattice structures in this series are built up from a succession of InO ¹ (InO layer) and MZn m O m+1 1+ (M/ZnO layer) perpendicular to the c-axis of the wurtzite-type structure as depicted in Fig. 1 [1100]…”

Modulated Structures of Homologous Compounds InMO3(ZnO)m(M=In, Ga;m=Integer) Described by Four-Dimensional Superspace Group

“…The space group was assigned as R3 m when m is an odd number and is P6 /mmc when m is an even number. It was assumed that trivalent M atoms in the M/Zn-O layers are in a random distribution, since no extra diffraction spots were observed in the X-ray diffraction patterns (7)(8)(9)(10).…”

Structure analysis of new homologous compounds Ga2O3(ZnO) m (m = integer) by high-resolution analytical transmission electron microscopy

“…Among them, the structures of M 2 O 3 (ZnO) m (M = In, Fe) have been studied by X-ray diffraction and high-resolution transmission electron microscopy (Hiramatsu et al, 1997;Kimizuka et al, 1993;Li et al, 1997;Li, Bando, Nakamura, Onoda & Kimizuka, 1998;Nakamura et al, 1990;Ohta et al, 1996). It was reported that M 2 O 3 (ZnO) m (M = In, Fe) have an LuFeO 3 (ZnO) mtype structure consisting of MO À 2 (M±O) and MZn m O m1 (M/Zn±O) layers stacked alternately along the c axis.…”