Chemical ordering and magnetic phase transitions in multiferroic BiFeO_(3)-AFe_(1/2)Sb_(1/2)O_(3)(A-Pb,Sr)solid solutions fabricated by a high-pressure

作     者：S.I.Raevskaya N.M.Olekhnovich A.V.Pushkarev Y.V.Radyush S.P.Kubrin V.V.Titov E.A.Artseva I.P.Raevski I.N.Zakharchenko C-C.Chou M.A.Malitskaya 

作者机构：Research Institute of Physics and Faculty of Physics Southern Federal University Rostov-on-Don 344090Russia Scientific-Practical Materials Research Centre of NAS of Belarus 220072MinskBelarus National Taiwan University of Science and Technology Taipei 106Taiwan 

出 版 物：《Journal of Advanced Dielectrics》 (先进电介质学报（英文）)

年 卷 期：2022年第12卷第1期

页      面：12-18页

学科分类：0808[工学-电气工程] 1002[医学-临床医学] 0809[工学-电子科学与技术（可授工学、理学学位）] 0817[工学-化学工程与技术] 0805[工学-材料科学与工程（可授工学、理学学位）] 100214[医学-肿瘤学] 0702[理学-物理学] 10[医学] 

基　　金：The reported study was funded by RFBR(Project number 20-52-00045) BRFBR(Project number T20R-169) 

主　　题：Multiferroics chemical ordering magnetic phase transition BiFeO_(3) high-pressure synthesis 

摘      要：synthesisCeramic samples of BiFeO_(3)-based perovskite solid solutions with the highly ordered complex perovskites PbFe_(1/2)Sb_(1/2)O_(3)(PFS)and SrFe_(1/2)Sb_(1/2)O_(3)(SFS)were obtained using high-pressure synthesis at 4-6 GPa.Mössbauer studies revealed that BiFeO_(3)-SFS compositions are characterized by a larger compositional inhomogeneity as compared to BiFeO_(3)-PFS *** line with this result,concentration dependence of the magnetic phase transition temperature TN for BiFeO_(3)-SFS compositions is close to the TN(x)dependence for BiFeO_(3)solid solution with disordered perovskite PbFe_(1/2)Nb_(1/2)O_(3)(PFN).In contrast to this TN(x)dependence for BiFeO_(3)-PFS compositions nicely follows the theoretical TN(x)dependence calculated for the case of the ordered distribution of Fe3+and non-magnetic Sb^(5)+ions in the lattice(chemical ordering).