High energy, high resolution photoelectron spectroscopy of Co2Mn1-xFexSi
High energy, high resolution photoelectron spectroscopy of Co2Mn1-xFexSi
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DOI：
10.1088/0022-3727/40/6/s11
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发表时间：
2007-03-21
影响因子：
3.4
通讯作者：
Kobayashi, Keisuke
中科院分区：
文献类型：
--
作者：
Fecher, Gerhard H.;Balke, Benjamin;Kobayashi, Keisuke
本文报道了Co_2Mn_（1-x）FexSi（x = 0，0.5，1）价带在8 keV光子激发下的高分辨光电子能谱。的测量结果显示出良好的协议与使用LDA + U计划的电子结构的计算。结果表明，与低能X射线光电子能谱相比，高能X射线光电子能谱能更好地揭示体电子结构。对费米能级附近的价带进行了高分辨率测量，结果表明三种合金的少数态都存在差距。
This work reports on high resolution photoelectron spectroscopy for the valence band of Co2Mn1-xFexSi ( x = 0, 0.5, 1) excited by photons of about 8 keV energy. The measurements show good agreement with calculations of the electronic structure using the LDA + U scheme. It is shown that the high energy spectra reveal the bulk electronic structure better compared with low energy x-ray photoelectron spectroscopy spectra. The high resolution measurements of the valence band close to the Fermi energy indicate the existence of the gap in the minority states for all the three alloys.