Magnetic ordering in multiferroic SmMn2O5 and GdMn2O5 studied by resonant soft x-ray scattering
Magnetic ordering in multiferroic SmMn2O5 and GdMn2O5 studied by resonant soft x-ray scattering
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DOI：
10.1103/physrevb.98.174428
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发表时间：
2018-11
影响因子：
3.7
通讯作者：
Y. Ishii;S. Horio;H. Yamamoto;Y. Noda;H. Nakao;Y. Murakami;H. Kimura
中科院分区：
文献类型：
--
作者：
Y. Ishii;S. Horio;H. Yamamoto;Y. Noda;H. Nakao;Y. Murakami;H. Kimura
共振软X射线散射被用来研究多铁材料的磁有序性。在这种情况下，结果证实，在不相称磁相中随着磁传播矢量发生Mn磁矩的反铁磁有序化，随后随着温度降低而出现相称磁相。 Mnedges 周围的能谱表明 Mn 离子在 CM 相中采用独特的电子态。没有发现该化合物中氧离子通过氧离子和锰离子之间的轨道杂化而产生自旋极化的证据，尽管这种现象在其他（= Y、Er、Tb）化合物中非常明显。 Oedge 周围的能谱强烈表明，氧和 Mn 离子之间的电荷转移产生的电子极化对铁电性几乎没有贡献，而晶格畸变可能在促进铁电性中发挥关键作用。
Resonant soft x-ray scattering was used to study the magnetic ordering of the multiferroic materialsand. In the case of, the results confirm that antiferromagnetic ordering of Mn magnetic moments occurs with magnetic propagation vectorin the incommensurate magnetic phase, followed by the appearance of the commensurate magnetic phase withas the temperature is decreased. The energy spectrum around Mnedges suggests that the Mn ions adopt unique electronic states in the CM phase of. No evidence was found for spin polarization of oxygen ions throughorbital hybridization between oxygen and Mn ions in this compound, although this phenomenon is clearly evident inand other(= Y, Er, Tb) compounds. The energy spectra around Oedge strongly suggest that electronic polarization resulting from charge transfer between oxygen and Mn ions has little contribution to the ferroelectricity while lattice distortion likely plays a key role in promoting ferroelectricity in.