The experimental results of Faraday rotation (FR) measurements in dilu
te magnetic semiconductors in high magnetic held ('Dirac Series' - Los
Alamos) are presented. The magnetic field is produced by an explosive
-driven flux-compression generator (150 T). Measurements have been car
ried with samples of Cd1-xMnxTe with x = 0.43 using 633 nm light at li
quid helium temperature. The FR increases in such samples when the mag
netic field exceeds 60 T. Interband exchange interaction and the direc
t influence of the external magnetic field on the exchange interaction
must be considered to interpret the experimental results. (C) 1998 El
sevier Science B.V. All rights reserved.