Eu Valence in EuAg5-xGax (x=0.5 and 1)

K. Łątkaa, J. Przewoźnikb, J. Żukrowskic, Yu. Verbovytskyyd, A.P. Gonçalvese aMarian Smoluchowski Institute of Physics, Jagiellonian University, Prof. S. Łojasiewicza 11, 30-348 Kraków, Poland bDepartment of Solid State Physics, Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, Al. A. Mickiewicza 30, 30-059 Kraków, Poland cAcademic Centre for Materials and Nanotechnology, AGH University of Science and Technology, Al. A. Mickiewicza 30, 30-059 Kraków, Poland dDepartment of Hydrogen Technologies and Hydride Materials Science, Karpenko Physico-Mechanical Institute of the NAS of Ukraine, Naukova Str. 5, 79-060 Lviv, Ukraine eC2TN, DECN, Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, 2695-066, Bobadela LRS, Portugal

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The results of 151Eu Mössbauer studies carried out in transmission mode at room temperature for EuAg5-xGax (x=0.5, 1) were reported in detail. The Mössbauer data clearly demonstrate the stable divalent state of Eu for both intermetallics. The fitting procedure allowed to estimate Vzz components of the electric field gradient tensor existing at Eu sites in the discussed compounds.

DOI:10.12693/APhysPolA.134.1063 PACS numbers: 76.80.+y, 82.80.Ej, 71.20.Lp, 75.30.Cr