Chemical ordering and magnetic phase transitions in multiferroic BiFeO3-AFe1/2Sb1/2O3 (A-Pb, Sr) solid solutions fabricated by a high-pressure synthesis

被引：0
|
作者：
Raevskaya, S., I [1 ,2 ]
Olekhnovich, N. M. [3 ]
Pushkarev, A., V [3 ]
Radyush, Y., V [3 ]
Kubrin, S. P. [1 ,2 ]
Titov, V. V. [1 ,2 ]
Artseva, E. A. [1 ,2 ]
Raevski, I. P. [1 ,2 ]
Zakharchenko, I. N. [1 ,2 ]
Chou, C-C [4 ]
Malitskaya, M. A. [1 ,2 ]
机构：
[1] Southern Fed Univ, Res Inst Phys, Rostov Na Donu 344090, Russia
[2] Southern Fed Univ, Fac Phys, Rostov Na Donu 344090, Russia
[3] NAS Belarus, Sci Pract Mat Res Ctr, Minsk 220072, BELARUS
[4] Natl Taiwan Univ Sci & Technol, Taipei 106, Taiwan
来源：
JOURNAL OF ADVANCED DIELECTRICS | 2022年 / 12卷 / 01期
关键词：
Multiferroics; chemical ordering; magnetic phase transition; BiFeO3; high-pressure synthesis; SINGLE-CRYSTALS; MOSSBAUER; PBFE0.5NB0.5O3; PB(FE1/2NB1/2)O-3; SPECTRA; OXIDES; FE-57;
D O I：
10.1142/S2010135X21600110
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Ceramic samples of BiFeO3-based perovskite solid solutions with the highly ordered complex perovskites PbFe1/2Sb1/2O3 (PFS) and SrFe1/2Sb1/2O3 (SFS) were obtained using high-pressure synthesis at 4-6 GPa. Mossbauer studies revealed that BiFeO3-SFS compositions are characterized by a larger compositional inhomogeneity as compared to BiFeO3-PFS ones. In line with this result, concentration dependence of the magnetic phase transition temperature T-N for BiFeO3-SFS compositions is close to the T-N(x) dependence for BiFeO3 solid solution with disordered perovskite PbFe1/2Nb1/2O3 (PFN). In contrast to this T-N(x) dependence for BiFeO3-PFS compositions nicely follows the theoretical T-N(x) dependence calculated for the case of the ordered distribution of Fe3+ and non-magnetic Sb5+ ions in the lattice (chemical ordering).
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页数：7
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