An X-Ray Study on Bi₂O₃-Fe₂O₃ System

The magnetic structure of Bi2Fe4O9– analysis of neutron diffraction measurements

“…A powder sample of the compound Bi2Fe409 was prepared at the Weizmann Institute of Science with the method of Koizumi et al (1964). Neutron (2 = 2.4 A) diffraction patterns of this sample were obtained at 298 and 80 K (Fig.…”

“…The crystallographic structure of the compound BiEFe40 9 at room temperature, revealed by X-ray diffraction (Koizumi, Niizeki & Ikeda, 1964;Tutov, Mylnikova, Parfenova, Bokov & Kizhaev, 1964;Niizeki & Wachi, 1968;Tutov & Markin, 1970), belongs to the orthorhombic space group Pbam (D9n). The dimensions of the unit cell, which contains two formula units, are (Niizeki & Wachi, 1968 Tables for X-ray Crystallography, 1952) the special positions 4(h) and 4(f) with point symmetries m~ and 2~ respectively.…”

Magnetoelectricity

“…The Bi 2 O 3 -Fe 2 O 3 phase diagram has been established by Koizumi et al (1964) and refined by Morozov and Gusarov (2002). Monodomain single crystals of BFO were obtained by Kubel and Schmid (1990).…”

Preparation and Properties of Rare-Earth Compounds

“…(1) solidstace reaction of intimate mixturcs of oxides prepared by coprecipitation of the hydroxides, For all of these preparations, starting materials were reagent grade 3i203' 99.9% pure Nd2a3" and 99.999% pure FeCl 2 ' The high-purity iron compound was emoloyed to minimize the concentrations of strongly ferromagnetic transitionmetal impurities that: typically are present.…”