Dispersion of the sound velocity in iron borate under nuclear magnetoacoustic resonance

Nuclear magnetic resonance investigation of photomagnetic phenomena in FeBO3

“…The multiple-line 57 Fe NMR spectrum in ferric borate was detected earlier [16,17], but in the present work we deal with the other situation. The authors of [16] observed more than 1 MHz splitting at temperatures higher than 300 K by a steady state technique, and corresponded it to a simultaneous excitation of the domain and domain wall signals.…”

“…The authors of [16] observed more than 1 MHz splitting at temperatures higher than 300 K by a steady state technique, and corresponded it to a simultaneous excitation of the domain and domain wall signals. Splitting of another kind (see [17] and references therein) was proportional to the external field and had a threshold behaviour, appearing only at relatively strong RF pulses. It was attributed to the domains with different magnetization orientations.…”