Перегляд за автором "Sergeev, N.A."

Сортувати за: Порядок: Результатів:

  • Polulyakh, S.N.; Sergeev, N.A. (Functional Materials, 2006)
    The effect of impurity ions on nuclear magnetic relaxation has been considered. It is supposed that an impurity ion introduces an excess electron (or a hole). As a result, magnetic ions with strong spin-orbital interaction ...
  • Sergeev, N.A.; Padlyak, B.V.; Olszewski, M.; Stepien, P. (Functional Materials, 2014)
    The MAS NMR spectra of the ¹¹B and ⁷Li isotopes in a series of un-doped crystalline and glassy borate compounds with Li₂B₄O₇, LiB₃O₅ and LiCaBO₃ chemical compositions were investigated and analyzed. The investigated borate ...
  • Sapiga, A.A.; Olszewski, M.; Paczwa, M.; Sapiga, A.V.; Sergeev, N.A. (Functional Materials, 2014)
    Solid-state ²⁹Si, ²⁷Al and ⁷¹Ga NMR MAS spectroscopy was used to study the natural mineral - natrolite (Na₁₆Al₁₆Si₂₄O₈₀⋅ 16H₂O) and gallosilicate Na₁₆Al₁₆Si₂₄O₈₀⋅ 16H₂O (Ga-natrolite). It has been shown that these natrolites ...