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1994 (1)
1Author    A. Trokiner, L. Le Noc, A. Yakubovskii, K. N. Mykhalyov, S. V. VerkhovskiiRequires cookie*
 Title    43Ca N M R Study of Bismuth-Based High-7C Superconductors  
 Abstract    As a first step of a study of the electronic properties of C u 0 2 planes by probing calcium nuclei in the bismuth-based high-Tc materials we report here the structural assignment of Ca N M R lines measured in 43Ca-enriched samples of n = 2 ((Bi,Pb)2Sr2CaCu2O g+x) and n = 3 ((Bi,Pb)2Sr2-Ca2C u 3O 10+Jl.) bismuth compounds. Powdered samples were investigated as well as oriented pow­ ders, achieved by uniaxial alignment of the grains in a 7T magnetic field. For the main calcium site (Ca between two C u 0 2 planes), we could determine the quadrupolar as well as the shift tensors. The results indicate that, in the same way as yttrium nuclei in YBaCuO, calcium nuclei are sensitive to the magnetic susceptibility of the metallic C u 0 2 planes. 
  Reference    Z. Naturforsch. 49a, 373—378 (1994); received 
  Published    1994 
  Keywords    43Ca N M R, High-7^ superconductors, Quadrupolar parameters, Shift parameters, Metallic state 
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 TEI-XML for    default:Reihe_A/49/ZNA-1994-49a-0373.pdf 
 Identifier    ZNA-1994-49a-0373 
 Volume    49