Exact analytic expressions for the modulation effects in two- and three-pulse electron spin echoes resulting from the hyperfine interaction of an electron and a nucleus with an arbitrary spin are derived. The two-pulse envelope modulation is calculated numerically for some nuclei for which modulation effects are most often observed experimentally. Applicability requirements of the conventional approximate formula for analysis of the ESE modulation effects are considered.
|Original language||English (US)|
|Number of pages||14|
|Journal||Journal of Magnetic Resonance (1969)|
|State||Published - Mar 1981|