ANGLE-RESOLVED PHOTOEMISSION DETERMINATION OF THE BAND-STRUCTURE AND MULTIELECTRON EXCITATIONS IN NI
ANGLE-RESOLVED PHOTOEMISSION DETERMINATION OF THE BAND-STRUCTURE AND MULTIELECTRON EXCITATIONS IN NI
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DOI：
10.1103/physrevb.21.3245
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发表时间：
1980-01-01
影响因子：
3.7
通讯作者：
PLUMMER, EW
中科院分区：
文献类型：
--
作者：
EBERHARDT, W;PLUMMER, EW
利用偏振同步加速器辐射的角分辨光电子能谱已被用来确定镍的电子能态。 sp 能带的色散和 Ni 能带结构中的所有高对称点均已确定。来自各个高对称点的光谱线宽用于估计整个 d 带的交换分裂的幅度。测量的 d 带宽度比计算预测值小 30%，而 sp 带宽度则相差 10% 以内。光电子能谱中出现在费米能量以下 6 至 27 eV 之间的几个峰被证明源自多电子激发。
Angle-resolved photoelectron spectroscopy utilizing polarized synchrotron radiation has been used to determine the electronic energy states of Ni. The dispersion of the sp band and all of the high-symmetry points in the Ni band structure have been determined. The linewidth in the spectra from the various high-symmetry points is used to estimate the magnitude of the exchange splitting throughout the d band. The measured d-band width is 30% smaller than predicted by calculations whereas the sp-band width agrees within 10%. Several peaks in the photoelectron spectra which appear between 6 and 27 eV below the Fermi energy are shown to originate from multielectron excitations.