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2000 (1)
1990 (1)
1Author    N. G. FazleyevRequires cookie*
 Title    Theoretical Study of the Indirect Quadrupole-Quadrupole Interactions in Metals and Alloys  
 Abstract    The indirect multipole interactions of nuclei and impurity paramagnetic ions in metals and alloys via conduction electrons are investigated by means of the dielectric function method. The Hamilto-nian of the indirect quadrupole-quadrupole interaction of impurity paramagnetic ions and nuclei is constructed selfconsistently, taking into account the exchange interactions and correlations of the conduction electrons as well as the antishielding effects. It is shown that the energy of these indirect quadrupole interactions of the nuclei and the paramagnetic ions decreases with the distance as R ~ 3 , oscillating with a period which is determined by the wave vector on the Fermi surface and the distance R. The influence of these indirect quadrupole-quadrupole interactions on the width and shape of the NMR lines is studied. 
  Reference    Z. Naturforsch. 45a, 380—384 (1990); received August 23 1989 in revised form December 1 1989 
  Published    1990 
  Keywords    Quadrupole, Interactions, Nuclei, Metals, Resonance 
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 TEI-XML for    default:Reihe_A/45/ZNA-1990-45a-0380.pdf 
 Identifier    ZNA-1990-45a-0380 
 Volume    45 
2Author    T. J. BastowRequires cookie*
 Title    47,49jj NMR in Metals, Inorganics, and Gels  
 Abstract    Some recent progress in solid state 47,49 Ti NMR is described and reviewed. The metallic-state work described covers metals such as hep titanium, TiB 2 , a number of intermetallics such as TiAl 2 and TiAl 3 . The inorganic work covers the various titanium oxide based materials including the Ti0 2 polymorphs, anatase, rutile and brookite. The gel work covers the evolution of crystalline titania from gels formed by hydrolysis of titanium isopropoxide. Some complementary data from 17 0 and 13 C NMR and powder X-ray diffraction is also included. 
  Reference    Z. Naturforsch. 55a, 291—297 (2000); received September 11 1999 
  Published    2000 
  Keywords    Titanium, NMR, Metals, Oxides, Gels 
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 TEI-XML for    default:Reihe_A/55/ZNA-2000-55a-0291.pdf 
 Identifier    ZNA-2000-55a-0291 
 Volume    55