2 7 O ct 1 99 9 Photoemission Study of Rare - Earth Ditelluride Compounds ( ReTe 2 : Re = La , Pr , Sm , and Gd )
نویسندگان
چکیده
We studied the electronic structure of rare-earth ditelluride (ReTe2: Re = La, Pr, Sm, and Gd) using photoemission spectroscopy. From the x-ray photoelectron spectroscopy (XPS) study of the 3d core levels of rare-earth elements, we found that all the rare earth elements are trivalent. We have also made theoretical calculations using the Gunnarsson and Schönhammer approximation and multiplet calculations for the rare earth elements to find that the La and Gd 3d peaks are well explained using our calculations. There is no considerable change in the line-shape of the Te 3d peaks depending on different rare earth elements. On ther other hand, valence band spectra
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