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'Relaxation' in keywords Facet   Publication Year 1992  [X]
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1Author    YuA. Ossipyan, O. V. Zharikov, V. L. Matukhin, V. N. Anashkin, I. A. Safin, A. I. Pogorelcev, G. B. Teitelbaum, Yba, Cu, IodinationRequires cookie*
 Title    Cu NQR Study in a High-J c Superconductor YBa 2 Cu 3 0 6A l x  
 Abstract    NQR-spectra and nuclear relaxation of 63 Cu in ceramic samples of the Y-Ba-Cu-O system with various oxygen content have been compared with those in iodinated YBa 2 Cu 3 O eA . 
  Reference    Z. Naturforsch. 47a, 21—26 (1992); received August 8 1991 
  Published    1992 
  Keywords    NQR-spectra, Relaxation, Superconductivity 
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 TEI-XML for    default:Reihe_A/47/ZNA-1992-47a-0021.pdf 
 Identifier    ZNA-1992-47a-0021 
 Volume    47 
2Author    R. Julian, C. Brown, MeganE. Shortreed, AndrewJ. Szabo, BrianM. Powell, StephenN. StuartRequires cookie*
 Title    NQR and Neutron Diffraction in Scheelites  
 Abstract    Measurements of the spin-lattice relaxation time for rhenium in KRe04 and NH4Re04 are reported; relaxation rates are extremely fast due to the large quadrupole moment of Re. Calculations of the electric field gradient in KRe04 show that the EFG is a very sensitive function of the orientation of the anion in the unit cell as well as of the unit cell dimensions, and that geometrical effects make a major contribution to the temperature dependence. Neutron diffraction in these two salts has been employed to determine the temperature dependence of structural parameters over a wide range of temperature, and preliminary results are reported. 
  Reference    Z. Naturforsch. 47a, 308—312 (1992); received August 4 1991 
  Published    1992 
  Keywords    NQR, Relaxation, Electric field gradient, Neutron diffraction 
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 TEI-XML for    default:Reihe_A/47/ZNA-1992-47a-0308.pdf 
 Identifier    ZNA-1992-47a-0308 
 Volume    47