MAGNETIZATION OF BOUND MAGNETIC POLARONS - DIRECT DETERMINATION VIA PHOTOMEMORY EFFECT

Light-induced persistent change in the concentration of occupied shallow donors (photomemory effect) in Cd1-xMnxTe1-ySey:In has been used for determining the contribution of donor-bound magnetic polarons to the total magnetization of the crystal. This contribution must be taken into account in any precise description of low temperature properties of diluted magnetic semiconductors containing shallow donors. The observed agreement between experimental data and the theory of bound magnetic polarons provides additional support for the negative-U model of DX-like centers in II-VI semiconductors.