Abstract
Sr1−x La x Fe1−x Cd x O3−δ solid solutions with x = 0.1 and 0.5 prepared at 1270 K are shown to have a cubic perovskite structure and the SrLaFeO4 structure, respectively. In the range x = 0.25-0.4, the samples consist of a perovskite phase and SrLaFeO4. As x increases from 0.2 to 0.5, the content of the perovskite phase gradually decreases, and that of the phase isostructural with SrLaFeO4 increases. The IR spectra of the samples with x = 0.3−0.5 are similar to the spectrum of SrLaFeO4. The Sr2/3La1/3FeO3−δ ferrite has the perovskite structure, rather than the Sr2LaFe3O8 structure. The synthesis of this ferrite proceeds through the formation of SrFeO3−δ and LaFeO3, followed by the mutual dissolution of these orthoferrites.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Sirota, N.N., The Physicochemical Nature of High-Coercivity Alloys, in Izbrannye trudy Siroty N.N. Fizika i fiziko-himicheskii analiz kondensirovannykh sred (Selected Works of N.N. Sirota: Physics and Physicochemical Analysis of Condensed Media), Minsk, 2001, vol. 1,part 1, pp. 125–178.
Sirota, N.N., The Physicochemical Nature and Properties of Ferrites, in Ferrity. Fizicheskie i fizikokhimicheskie svoistva (Physical and Physicochemical Properties of Ferrites), Minsk, 1960, pp. 50–73.
Sirota, N.N., Fiziko-khimicheskaya priroda faz peremennogo sostava (The Physicochemical Nature of Phases of Variable Composition), Minsk: Nauka i Tekhnika, 1970.
Sirota, N.N., Structure-Composition Relations in Ferrites, in Fizicheskie svoistva ferritov (Physical Properties of Ferrites), Minsk, 1967, pp. 5–12.
Sirota, N.N., Bondar’, V.I., and Fomenko, T.V., Magnetic Properties of Barium Strontinum Calcium Ferrites, in Fizicheskie svoistva ferritov (Physical Properties of Ferrites), Minsk, 1967, pp. 77–82.
Sirota, N.N. and Bondar’, V.I., Curie Temperature of Barium Strontium Calcium Hexaferrite Solid Solutions, Dokl. Akad. Nauk BSSR, 1977, vol. 21, no. 6, pp. 507–510.
Bashkirov, L.A., Gorbunova, S.P., and Pankov, V.V., The Influence of Ba(Sr)Al2.5Fe9.5O19 on the Properties of Anisotropy of Sr-Ferrite Magnets, 7th Int. Conf. on Ferrites, Bordeaux, 1996, p. 412.
Taguchi, T., Takeishi, T., Suwa, K., et al., High Energy Ferrite Magnets, J. Phys. III, 1997, suppl. Mars, pp. 1–311.
Smolenchuk, S.V., Yanushkevich, K.I., and Bogush, A.K., Magnetic Properties of Sr1−x La x Fe12−x Me x O19 (Me = Mn, Zn, Co) Magnetoplumbite-Structure Ferrite Solid Solutions, Tr. Beloruss. Gos. Univ., Ser. III: Khim. Tekhnol. Neorg. Veshchestv, 2005, no. 13, pp. 93–96.
Smolenchuk, S.V., Bashkirov, L.A., and Yanushkevich, K.I., Lattice Parameters and Magnetic Properties of Sr1−x La x Fe12−x Co x O19 Magnetoplumbite Solid Solutions, Materialy V mezhdunarodnoi nauchnoi konferentsii “Khimiya tverdogo tela i sovremennye mikro-i nanotekhnologii” (Proc. V Int. Conf on Solid-State Chemistry and Advanced Micro-and Nanotechnologies), Kislovodsk, 2005, pp. 94–96.
Smolenchuk, S.V., Bashkirov, L.A., and Yanushkevich, K.I., Lattice Parameters and Magnetic Properties of Sr1−x La x Fe12−x Cd x O19 Magnetoplumbite Solid Solutions, Sbomik dokladov mezhdunarodnoi nauchnoi konferentsii “FTT-2005. Aktual’nye problemy fiziki tverdogo tela” (Proc. Int. Conf. on Critical Issues in Solid-State Physics, FTT-2005), Minsk, 2005, pp. 102–104.
Wulikopf, H., Einflubyroben auf die Reaktionkinetik von Strontiumhex aferrit, Ber. Dtsch. Keram. Ges., 1978, vol. 55, no. 6, pp. 292–293.
Habery, F. and Kockel, A., The Formation of Strontium Hexaferrite SrFe12O19 from Pure Iron Oxide and Strontium Carbonate, IEEE Trans. Magn., 1976, vol. 12, no. 6, pp. 983–985.
Bahteeva, J.A., Leonidov, I.A., Patrakeev, M.V., et al., High-Temperature Ion Transport in La1−x Sr x FeO3, J. Solid State Electrochem., 2004, vol. 8, pp. 578–584.
Battle, P.D., Gibb, T.C., and Lightfoot, P., The Crystal and Magnetic Structures of Sr2LaFe3O8, J. Solid State Chem., 1990, vol. 84, pp. 237–244.
Battle, P.D., Gibb, T.C., and Nixon, S., A Study of the Ordering of Oxygen Vacancies in the Nonstoichiometric Perovskite Sr2LaFe3O8+y by Mössbauer Spectroscopy and a Comparison with SrFeO3−y , J. Solid State Chem., 1989, vol. 79, pp. 75–78.
Battle, P.D., Gibb, T.C., and Lightfoot, P., The Structural Consequences of Charge Disproportionation in Mixed-Valence Iron Oxides: I. The Crystal Structure of Sr2LaFe3O8.94 at Room Temperature and 50 K, J. Solid State Chem., 1990, vol. 84, pp. 271–279.
Soubeyroux, J.L., Courbin, P., Fournes, L., et al., La phase SrLaFeO4: Structures cristalline et magnétique, J. Solid State Chem., 1980, vol. 31, pp. 313–320.
Venevtsev, Yu.N., Politova, E.D., and Ivanov, S.A., Segneto-i antisegnetoelektriki semeistva titanata bariya (Ferro-and Antiferroelectrics of the Barium Titanate Family), Moscow: Khimiya, 1985, p. 256.
Vainshtein, B.K., Fridkin, V.M., and Indenbom, V.L., Struktura kristallov (Crystal Structure), vol. 2 of Sovremennaya kristallografiya (Modern Crystallography), Vainshtein, B.K., Chernov, A.A., and Shuvalov, L.A., Eds., Moscow: Nauka, 1979.
Powder Diffraction File, Newtown Square: ICDD, 2001, no. 17-1745.
Bashkirov, L.A. and Sirota, N.N., X-ray Diffraction Study of Yttrium Lanthanum Perovskite Ferrites, in Fizicheskie i fiziko-khimicheskie svoistva ferritov (Physical and Physicochemical Properties of Ferrites), Minsk, 1966, pp. 260–267.
Powder Diffraction File, Newtown Square: ICDD, 2001, no. 82–1964.
Powder Diffraction File, Newtown Square: ICDD, 2001, no. 80–1035.
Author information
Authors and Affiliations
Additional information
Original Russian Text © S.V. Smolenchuk, L.A. Bashkirov, M.V. Bushinskii, S.S. Dorofeichik, 2007, published in Neorganischeskie Materialy, 2007, Vol. 43, No. 5, pp. 621–625.
Rights and permissions
About this article
Cite this article
Smolenchuk, S.V., Bashkirov, L.A., Bushinskii, M.V. et al. Crystal structure and IR spectra of Sr1−x La x Fe1−x Cd x O3−δ . Inorg Mater 43, 546–550 (2007). https://doi.org/10.1134/S0020168507050196
Received:
Issue Date:
DOI: https://doi.org/10.1134/S0020168507050196