Aa. Lundin et Ve. Zobov, SHAPE OF THE TAILS IN THE MAGNETIC-RESONANCE SPECTRUM AND ADIABATIC INVARIANTS IN THE SPIN SYSTEM, Zhurnal eksperimental'noj i teoreticheskoj fiziki, 103(3), 1993, pp. 1070-1077
The exponential shape of the wings in the magnetic resonance spectra o
bserved experimentally for a long time is shown to result from arising
an adiabatic invariant in the system under the conditions correspondi
ng to the observation of wings. The approach developed allows also to
examine the magnetization lows resulting from the influence on the sys
tem of adiabatic pulses.