Mixed-Valence State in Yb_2CuGe_6
A. Szytuła a, B. Penc a, M. Konyk b and A. Winiarski c
a M. Smoluchowski Institute of Physics, Jagiellonian University, Reymonta 4, 30-059 Kraków, Poland
b Department of Inorganic Chemistry, Ivan Franko National University of Lviv, Kyryla and Mefodiya 6, UA-79005 Lviv, Ukraine
c A. Chełkowski Institute of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, Poland
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Received: 3 06 2007;
We present here temperature dependent X-ray photoemission measurements on polycrystalline Yb2CuGe6. The analysis of these data shows the change in the effective valence, determined directly from the 4f intensity ratio, as a function of temperature.
DOI: 10.12693/APhysPolA.113.1205
PACS numbers: 71.20.Lp, 75.20.Hr, 79.60.-i