Applied Magnetic Resonance

, 24:333 | Cite as

Peculiarities of the radiospectroscopy line shape in nanomaterials

  • M. D. Glinchuk
  • A. N. Morozovskaya
  • A. M. Slipenyuk
  • I. P. Bykov


The theory of the radiospectroscopy (nuclear magnetic resonance [NMR] and electron spin resonance [ESR]) line shape for nanomaterials is developed. The consideration was performed in the core and shell models which are, respectively, the nanoparticle regions unperturbed and perturbed by the surface influence. The shift of the resonance frequency by the surface tension was taken into account. The homogeneously broadened line shape was supposed to be Gaussian or Lorentzian. Inhomogeneous broadening of lines via the distribution of nanoparticle sizes was calculated for several forms of the size distribution function. The splitting of radiospectroscopy spectra into two lines decreases with particle sizes, which looks like that in the bulk and on the surface. It was shown to be the characteristic feature of nanomaterial spectra. The changing of these lines’ intensity and width with the change of the distribution function parameters and the particle size decrease was considered. The comparison of the theory with NMR spectra of17O and25Mg observed recently in nanocrystalline MgO is performed. The calculations fit pretty good the observed size dependence of the line shape, intensity and width.


Surface Tension Electron Spin Resonance Resonance Frequency Line Shape Size Distribution Function 
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Copyright information

© Springer 2003

Authors and Affiliations

  • M. D. Glinchuk
    • 1
  • A. N. Morozovskaya
    • 1
  • A. M. Slipenyuk
    • 1
  • I. P. Bykov
    • 1
  1. 1.Institute for Problems of Materials ScienceNational Academy of Sciences of UkraineKiev-142Ukraine

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