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2000 (1)
1Author    S. V. Verkhovskii, B. Z. Malkin, A. Trokiner, A. Yakubovskii, E. Hallet, A. Ananyev, A. Gerashenko, Yu Piskunov, S. Saikin, A. Tikhomirov, V. OzhoginRequires cookie*
 Title    Quadrupole Effects on 73 Ge NMR Spectra in Isotopically Controlled Ge Single Crystals  
 Abstract    NMR spectra of 73 Ge (nuclear spin / = 9/2) in perfect single crystals of germanium with different isotopic content were measured at 80, 300, and 450 K. The observed specific line shapes gave evidence of the isotopic disorder, in particular, abnormal broadening of the spectrum was found for the magnetic field directed along the [111] axis. Local lattice deformations in the germanium crystal lattice due to "isotopic disorder" were calculated in the framework of the adiabatic bond charge model. The results were applied to study random non-cubic crystal field interactions with the nuclear quadrupole moments and corresponding effects on NMR spectra. The simulated second moment of the resonance frequency distributions caused by the magnetic dipole-dipole and electric quadrupole interactions are used to analyze the lineshapes, theoretical predictions being in a qualitative agreement with the experimental data. 
  Reference    Z. Naturforsch. 55a, 105—110 (2000); received September 11 1999 
  Published    2000 
  Keywords    Isotopic Disorder, Ge Single Crystal, NMR Spectra, Quadrupole Effects 
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 TEI-XML for    default:Reihe_A/55/ZNA-2000-55a-0105.pdf 
 Identifier    ZNA-2000-55a-0105 
 Volume    55