Magnetic polarons (ferrons) of complicated structure

So far, magnetic polarons in antiferromagnetic semiconductors (ferrons) wer e assumed to arise due to the charge carrier self-trapping by a ferromagnet ic or canted antiferromagnetic region. If the ferron size is not very large , they should have much more complicated structure: the magnetically deform ed region consists not only of a magnetized core, which traps the electron, but also of its surrounding with the oppositely directed total moment, whi ch repulses the trapped electron. The compensating moment of the surroundin g oscillates with a period of the doubled lattice constant and with the amp litude diminishing very smoothly on an increase in the distance from the co re. (C) 2001 MAIK "Nauka/Interperiodica".