Random-walks in disordered-systems and their investigations by means of magnetic-resonance and relaxation of polarized beta-active nucleiстатья
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Дата последнего поиска статьи во внешних источниках: 12 октября 2013 г.
Аннотация:The experimental investigations of the polarization transport in the disordered spin system8Li −6Li in LiF crystal are considered. This process is initiated by one originally polarized beta-active8Li nucleus produced in a nuclear reaction. The autocorrelation function Foo(t) for the ran dom-walks-in-disordered-system problem has been measured over the range Foo(t)≥0.1 Foo(0) by analysing the β-emission anisotropy. The influence of the resonance process at double larmor frequency and of the thermal translational motion of8Li and6Li spins is studied. Results are in a good agre ement with the theory.