Nonlinear effects in parametric excitation of paramagnetic ions in a crystal with rhombic symmetry
A. A. ZvyaginAcademy of Sciences of the Ukrainian SSR Physicotechnical Institute of Low Temperatures, , Khar'kovA. M. FrishmanAcademy of Sciences of the Ukrainian SSR Physicotechnical Institute of Low Temperatures, , Khar'kovV. M. TsukernikAcademy of Sciences of the Ukrainian SSR Physicotechnical Institute of Low Temperatures, , Khar'kov
ABI
Annotatsiya
An exact quantum approach is used to investigate the low-temperature behavior of a system of paramagnetic ions of spin S = 1 and S = 3/2 under the parametric action of an rf magnetic field. The field is taken into account in the resonance approximation. It is shown that allowance for the finite value of the spin leads to resonance saturation, as a result of which the magnetization oscillates with a finite amplitude.
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