| Autor: |
Gul’ko, A., Dzheparov, F., Ermakov, O., Lyubarev, A., Stepanov, S., Trostin, S. |
| Zdroj: |
Journal of Surface Investigation: X-Ray, Synchrotron & Neutron Techniques; Dec2008, Vol. 2 Issue 6, p856-860, 5p |
| Abstrakt: |
The results of theoretical and experimental investigations of delocalization of nuclear polarization in spatially disordered media are presented. The experiment is based on the measurement of a depolarization of β-active 8Li impurity nuclei (β-nuclei) in the spatially disordered subsystem of 8Li-6Li nuclei in LiF single crystals. The process is determined by the dipole-dipole interaction in this subsystem and by its dipole interactions with nuclei of the 7Li19F matrix. It is effective in a wide range of external magnetic fields H 0 = 200–3000 G owing to proximity of g-factors. The kinetics of a depolarization of β-nuclei at the 6Li concentration c = 0.15–10.06% in fields H 0 = 200 and 1210 G is investigated. A satisfactory explanation of the results is based on the numerical-analytical simulation of the process. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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