Abstract
An analytical expression is obtained for the amplitude of a nuclear echo signal generated in magnetically concentrated materials upon resonant excitation of the nuclear subsystem by two pulses with an equal amplitude. It is revealed that, when both the inhomogeneous broadening of the spectroscopic transition and the inhomogeneous gain distribution are taken into account in the theory simultaneously, the spin echo signal can consist of eight satellites symmetrically located around the central peak. The analytical expressions obtained are used to determine relations between the relative amplitudes and the instants of generation of satellites, on the one hand, and microscopic parameters, such as the inhomogeneous half-width of the spectral line, the halfwidth of the gain distribution function, and the average gain, on the other hand. The results of theoretical calculations and the experimental data obtained for the FeV (2 at % V) alloy are in good agreement.
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Original Russian Text © V.S. Kuz’min, V.M. Kolesenko, E.P. Borbotko, 2008, published in Fizika Tverdogo Tela, 2008, Vol. 50, No. 11, pp. 2043–2049.
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Kuz’min, V.S., Kolesenko, V.M. & Borbotko, E.P. Two-pulse nuclear echo signal in magnetically ordered media. Phys. Solid State 50, 2133–2140 (2008). https://doi.org/10.1134/S1063783408110218
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DOI: https://doi.org/10.1134/S1063783408110218