Competing orbital ordering in RVO(3) compounds: High-resolution x-ray diffraction and thermal expansion
Competing orbital ordering in RVO(3) compounds: High-resolution x-ray diffraction and thermal expansion
复制标题
RVO(3) 化合物中的竞争轨道排序：高分辨率 X 射线衍射和热膨胀
DOI：
10.1103/physrevb.76.195102
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发表时间：
2007
影响因子：
3.7
通讯作者：
T. Palstra
中科院分区：
文献类型：
--
作者：
M. Sage;G. Blake;C. Marquina;T. Palstra
我们报告了具有中等尺寸稀土的 RVO{sub 3} 化合物中不同对称性轨道排序相共存的证据。通过高分辨率 X 射线粉末衍射和热膨胀研究，我们表明竞争轨道排序与这些化合物中 VO{sub 6} 八面体倾斜和磁交换严格程度有关，并且相分离状态通过晶格应变稳定。
We report evidence for the phase coexistence of orbital orderings of different symmetry in RVO{sub 3} compounds with intermediate-size rare earths. Through a study by high-resolution x-ray powder diffraction and thermal expansion, we show that the competing orbital orderings are associated with the magnitude of the VO{sub 6} octahedral tilting and magnetic exchange striction in these compounds and that the phase-separated state is stabilized by lattice strains.