光電子スペクトルにおける温度依存性の解析法とその高分解能価電子帯スペクトルへの応用

概要

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We present a method for the analysis of the temperature dependence of valence-band photoemission spectra in solids. This is the method of reproducing photoemission spectra which may be directly compared with photoemission spectra as observed. In this procedure, we approximate the density of the filled states in a conduction band at a finite temperature by a mere Fermi function, use a Doniach-Sunjic line for each sharp line, include an integral-type inelastic background, and convolute the spectral weight obtained here with a Gaussian line representing experimental broadening. The method could make us get reliable information about important parameters in heavy-fermion system et al.. A comparison of the results with the spectra as observed shows that the method offers the prospect for a powerful tool in the analysis of high-resolution valence-band spectra at any temperature in solids.
群馬大学の論文