Inversion of nuclear magnetization of compensated silicon in interband absorption of light in weak magnetic fields
Bagraev N.T., Vlasenko L.S., Zhitnikov R.A.
A strong dependence of the degree of dynamic polarization of 29Si nuclei on the external magnetic field has been observed in optically pumped compensated silicon. Two types of interaction between the 29Si nuclei and the electrons captured by different impurity centers have been observed, and this is the reason for the different nuclear-magnetization directions.