Effect of a weak magnetic field on the state of structural defects and theplasticity of ionic

The aim of this work is to examine the influence of a weak (on the energy s cale) magnetic field on the state of dislocations and point defects in ioni c crystals. It is found that complex point defects existing in a metastable state are sensitive to a magnetic field B similar to T. The contributions are identified, and the kinetics of various types of reactions within the s tructural defects and between them leading to plastification of the crystal s in a magnetic field are determined. The effect of light on the sensitivit y of the point defects to a magnetic field is described, and the spectral c haracteristics of this effect are determined. A resonant effect of the comb ined action of a weak constant magnetic field and a high-frequency magnetic field on the dislocation mobility is found to occur when these fields sati sfy the conditions of electron paramagnetic resonance. (C) 1999 American In stitute of Physics. [S1063-7761(99)01602-9].