The photomagnetic effect detected by nuclear magnetic resonance

The results of experiments with transparent easy-plane antiferromagnetic iron borate (FeBO₃) show that nuclear magnetic resonance (NMR) offers an effective tool for the study of photomagnetism in magnetically ordered materials. It is established that illumination of a FeBO₃ sample leads to a shift of the ⁵⁷Fe NMR frequency due to a change in the electron magnetization and significantly increases the nuclear induction signal intensity in the range of existence of the domain boundaries.