Review of thin films of RFe2O4 (R=Lu, Yb, Tm or In)
Review of thin films of RFe2O4 (R=Lu, Yb, Tm or In)
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DOI：
10.15406/mseij.2018.02.00031
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发表时间：
2018-03
期刊：
影响因子：
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通讯作者：
T. Nagata
中科院分区：
文献类型：
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作者：
T. Nagata
强关联电子系统由于其异常的电学、磁学和光学性质而在固体物理学中引起了广泛的关注。稀土类离子铁氧体RFe2O4（R = Y、Dy、Ho、Er、Tm、Yb、Lu、Sc、In）是典型的例子。这种材料由双层堆叠的铁三角层（W层）组成，中间由单一的稀土三角层隔开。1等量的Fe2+和Fe3+存在于三角晶格上，并由于铁离子之间的库仑相互作用而形成电荷有序。2，3电荷有序的W层分别在三维电荷有序温度之上和之下随机和规则地堆叠。
The strongly correlated electron system has been attracted much attention in solid state physics due to its abnormal electric, magnetic and optical properties which promises novel application. Rare earth ion ferrite RFe2O4 (R = Y, Dy, Ho, Er, Tm, Yb, Lu, Sc, or In) is the typical example. This material is composed of doubly stacked iron triangular layers (W-layer) separated by single rare-earth triangular layer.1 Equal amounts of Fe2+ and Fe3+ exist on triangular lattices and form charge orders due to the Coulombic interaction between iron ions.2,3 The charge ordered W-layers stack randomly and regularly above and below threedimensional charge ordering temperature, respectively.