Electron energy loss spectroscopy studies of the amorphous to crystalline transition in FeF3
Electron energy loss spectroscopy studies of the amorphous to crystalline transition in FeF3
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FeF3 中非晶态到晶态转变的电子能量损失谱研究
DOI：
10.1063/1.371083
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发表时间：
1999
影响因子：
3.2
通讯作者：
C. Humphreys
中科院分区：
文献类型：
--
作者：
M. Saifullah;G. Botton;C. Boothroyd;C. Humphreys
本文讨论了用电子能量损失谱(EELS)研究非晶态FeF3薄膜的电子束诱导晶化。时间分辨电致发射光谱研究表明，非晶态FeF3(a-FeF3)中的配位多面体是随机排列的FeF6八面体。在电子束作用下，它们在晶化过程中对FeF2和FeF3进行长程有序排列。在晶化过程中，可以清楚地看到单电子d带占有率的变化，以及FeL3和L2边的比例对铁离子电子构型的敏感性。
Electron beam-induced crystallization studies in amorphous FeF3 films using electron energy loss spectroscopy (EELS) are discussed in this letter. Time-resolved EELS studies show that the coordination polyhedra in amorphous FeF3 (a-FeF3) are randomly arranged FeF6 octahedra. They arrange themselves to give long range order during crystallization to FeF2 and FeF3 under the electron beam. Changes in the d-band occupancy by one electron as well as the sensitivity of the ratio of the Fe L3 and L2 edges to the electronic configuration of the iron ion are clearly seen during the crystallization process.