NMR in ferromagnetic Fe2MnO4 at millidegree temperatures
Dumesh B.S.
The spin-echo method is used to investigate NMR in Mn55 nuclei at temperatures 4-0.04°K. A large dynamic shift of the NMR frequency is observed for the first time in ferromagnets. The temperature dependence of the magnetization of Mn55 nuclei in the region of appreciable deviations from the Curie law is investigated by measuring the dynamic frequency shift.