Improved magnetic properties and structural characterizations in Mn doped 0.9BiFeO₃-0.1BaTiO₃ compositions

详细信息    查看全文

• 作者：R.A.M. Gotardo^a ; ^{ramgotardo@gmail.com} ; E.F.R. Silva^a ; D.Z. Montanher^b ; G.M. Santos^c ; K.L. Silva^c ; L.F. Có ; tica^c ; I.A. Santos^c ; ^d ; R. Guo^d ; A.S. Bhalla^d
• 关键词：Multiferroic ; BiFeO3 ; Structural properties ; Magnetism
• 刊名：Scripta Materialia
• 出版年：2017
• 出版时间：15 March 2017
• 年：2017
• 卷：130
• 期：Complete
• 页码：161-164
• 全文大小：659 K
• 卷排序：130

文摘

A structurally correlated magnetization enhancement is reported for Mn doped 0.9BiFeO3–0.1BaTiO3 compounds. X-ray diffraction and Rietveld refinement studies revealed a distorted perovskite structure with the coexistence of rhombohedral and monoclinic symmetries. Mössbauer spectroscopy results showed a magnetic spectral signature of ordered Fe3 + ions for the rhombohedral phase of the undoped sample, and for both rhombohedral and monoclinic phases of the Mn doped samples. A significant magnetization increase (reaching 0.50 emu/g), associated to the magnetic ordering of the Cm phase and to the retention of the Mn3 + valence state, was observed for Mn doped samples.