BiFeO3-PbTiO3固溶体的结构性质和不相称磁序

2012 IEEE International Conference on Oxide Materials for Electronic Engineering (OMEE) Pub Date : 2012-09-01 DOI:10.1109/OMEE.2012.6464827

A. Senyshyn, R. Ranjan, V. Kothai, A. Daoud-Aladine

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引用次数: 0

摘要

几十年来，钙钛矿BiFeO3由于其在室温下独特的铁电性和磁性组合而受到了相当大的关注。最近有报道称，BiFeO3中的线性磁电耦合可以通过人为引入无序来实现，就像在固溶体中一样，其中PbTiO3取代引起反铁磁(AFM) M-H环。利用单色高分辨率中子粉末衍射(NPD)和超高分辨率TOF NPD对(1−x)BiFeO3-xPbTiO3固溶体(x =0−0.3)进行了联合研究，确定了磁性和结构顺序的细节。

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Structural properties and incommensurate magnetic order in BiFeO3-PbTiO3 solid solutions

The perovskite BiFeO3 has received considerable attention over decades due to its unique combination of ferroelectric and magnetic properties at room temperature. Recently it has been reported that linear magnetoelectric coupling in BiFeO3 can be realized by artificially introduced disorder like in solid solutions, where PbTiO3 substitution causes an antiferromagnetic (AFM) M-H loop. Details of the magnetic and structural order obtained by joint studies using monochromatic high-resolution neutron powder diffraction (NPD) and ultra-high resolution TOF NPD on (1−x)BiFeO3-xPbTiO3 solid solutions (x =0−0.3) have been determined.

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2012 IEEE International Conference on Oxide Materials for Electronic Engineering (OMEE)

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