立方、六方和四方FeGe相（= 1、1.5、2）：拉曼光谱和磁性
Cubic, hexagonal and tetragonal FeGe phases ( = 1, 1.5, 2): Raman spectroscopy and magnetic properties.
作者信息
Kúkoľová A, Dimitrievska M, Litvinchuk A P, Ramanandan S P, Tappy N, Menon H, Borg M, Grundler D, Fontcuberta I Morral A
机构信息
Laboratory of Semiconductor Materials, Institute of Materials, School of Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL) 1015 Lausanne Switzerland
Laboratory of Nanoscale Magnetic Materials and Magnonics, Institute of Materials, Ecole Polytechnique Fédérale de Lausanne (EPFL) 1015 Lausanne Switzerland.
出版信息
CrystEngComm. 2021 Aug 20;23(37):6506-6517. doi: 10.1039/d1ce00970b. eCollection 2021 Sep 27.
There is currently an emerging drive towards computational materials design and fabrication of predicted novel materials. One of the keys to developing appropriate fabrication methods is determination of the composition and phase. Here we explore the FeGe system and establish reference Raman signatures for the distinction between FeGe hexagonal and cubic structures, as well as FeGe and FeGe phases. The experimental results are substantiated by first principles lattice dynamics calculations as well as by complementary structural characterization such as transmission electron microscopy and X-ray diffraction, along with magnetic measurements.
目前，计算材料设计以及预测新型材料的制造正成为一种新兴趋势。开发合适制造方法的关键之一是确定成分和相。在此，我们研究了FeGe体系，并建立了用于区分FeGe六方结构和立方结构以及FeGe和FeGe相的参考拉曼特征。实验结果通过第一性原理晶格动力学计算、透射电子显微镜和X射线衍射等互补结构表征以及磁性测量得到了证实。
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