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'Superconductor' in keywords Facet   Publication Year 1998  [X]
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1998[X]
1Author    YaA. Ossipyan, N. S. Sidorov, V. I. Kulakov, V. L. Matukhin, A. I. Pogoreltsev, V. N. Anashkin, I. A. Safin, L. E. MatukhinaRequires cookie*
 Title    NQR Studies of Halogen Treated 1-2-3 System  
 Abstract    NQR spectra of copper in polycrystalline samples of iodine treated RBa 2 Cu 3 O y (R = Y, Gd) were studied. The results of all the experiments show evidence for the modifications occurring in the oxygen sublattice in treated compounds. 
  Reference    Z. Naturforsch. 53a, 542—545 (1998); received March 24 1998 
  Published    1998 
  Keywords    NQR-spectra, Superconductors, Treatment, Halogens, Diffusion 
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 TEI-XML for    default:Reihe_A/53/ZNA-1998-53a-0542.pdf 
 Identifier    ZNA-1998-53a-0542 
 Volume    53 
2Author    H. Yoshida, H. Nishihara, S. Yokota, M. Ohyanagi, T. NakaokiRequires cookie*
 Title    Field-Swept NMR Spectra of n B in Pyrex Glass and 93 Nb in NbN Perturbed by Quadrupole Interaction  
 Abstract    NMR experiments of "B by both field-swept and high-resolution NMR are reported to probe the electric field gradient at boron sites and its distribution in Pyrex glass. Both spectra are successfully interpreted with the same set of parameters. It is stressed that field-swept NMR experiments to observe total powder spectrum can be helpful to get information on electric field gradients and asymmetry pa-rameters if there exist many nonequivalent sites of atoms, since satellite transitions are affected by the larger first-order quadrupole effect. Field-swept NMR of 93 Nb in superconducting NbN powder, pre-pared by self-propagating high-temperature synthesis, is also reported. A very broad field-swept spec-trum disturbed by quadrupole interaction has been observed. The spectrum is simulated by assuming distributions in electric field gradient and Knight shift at Nb sites. It is stressed that a combination of experiments at separated frequencies is important 
  Reference    Z. Naturforsch. 53a, 309—313 (1998); received January 26 1998 
  Published    1998 
  Keywords    NMR, Pyrex, Glass, n B, NbN, Superconductor, 93 Nb 
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 TEI-XML for    default:Reihe_A/53/ZNA-1998-53a-0309.pdf 
 Identifier    ZNA-1998-53a-0309 
 Volume    53