Liquid-phase sintered bismuth ferrite multiferroics and their giant dielectric constant. Issue 12 (15th August 2019)

• Record Type: Journal Article
• Authors: Liedienov, N.A.; Pashchenko, A.V.; Turchenko, V.A.; Sycheva, V.Ya.; Voznyak, A.V.; Kladko, V.P.; Gudimenko, A.I.; Tatarchuk, D.D.; Didenko, Y.V.; Fesych, I.V.; Makoed, I.I.; Kozakov, A.T.; Levchenko, G.G.
• Is Part Of: Ceramics international. Volume 45:Issue 12(2019)
• Page Start: 14873
• Page End: 14879
• Publication Date: 2019-08-15
• Subjects: Giant dielectric constant -- Multiferroics -- Perovskite structure -- Defect structure -- Rapid liquid-phase sintering method -- XPS spectroscopy; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2019.04.220
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: Rapid liquid-phase sintering method has been modified and used to synthesize Bi1- x La x FeO3- δ compositions (0 ≤ x ≤ 0.5). The temperature and sintering procedures to obtain stable single-phase samples have been defined. This provides a significant reduction in the synthesis time, which is especially important for mass production. Furthermore, giant dielectric constants have been observed in Bi1- x La x FeO3- δ compositions, the values of which are one order of magnitude larger than those of similar Bi-based multiferroics obtained by conventional methods. It potentially makes them one of the most promising materials for modern technological applications.