Magnetoelastic NMR signal attenuation in FeBO3

To determine the mechanisms of neutral effect of nuclear and acoustic subsystems in substances with strong magnetoelectric coupling magnetoelastic NMR signal attenuation in FeBO3 crystal is investigated. All the field were applied in the plane of light crystal magnetization. The carrier frequency made up 75.4 MHz and 150.8 MHz. At the given frequency two acoustic resonances were excited under 180 Oe and 214 Oe. 57Fe nucleus induction signal was recorded at 77 K temperature in 50<H<300 Oe fields after resonance pulse. Experiments have shown that reduction of attenuation time in the region of acoustic resonances does exist and it is sufficient enough. The minimum position practically coinsides with acoustic resonances