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'151Eu Mössbauer Spectroscopy' in keywords Facet   Publication Year 2001  [X]
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1Author    G. Concas, C. Muntoni, G. Spano, M. Bettinelli3, A. Speghini3Requires cookie*
 Title    Mössbauer Investigation of Eu3+ Site Occupancy and Eu-O Covalency in Y20 3 and Gd20 3 Nanocrystals  
 Abstract    Samples of nanocrystalline Yj 8Euo.20 3 and G d18Euo20 3 were examined by 151Eu Mössbauer spectroscopy. The degree of covalency of the E u-0 bond has been studied. The spectrum of the cubic Yj gEuo 20 3 sample has been resolved into 2 contributions due to europium in the C3i and C2 sites, for the first time in 151Eu Mössbauer spectroscopy. The degree of covalency and the electric field gradient of the 2 sites has been compared. The occupancy, by the lanthanide ion, of the more and less symmetric sites in the cubic structure of Yj gEuo 20 3 has been investigated and discussed. 
  Reference    Z. Naturforsch. 56a, 267—272 (2001); received November 11 2000 
  Published    2001 
  Keywords    Europium, Yttrium, Oxides, Nanocrystals, 151Eu Mössbauer Spectroscopy 
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 TEI-XML for    default:Reihe_A/56/ZNA-2001-56a-0267.pdf 
 Identifier    ZNA-2001-56a-0267 
 Volume    56