The formation of magneto-sensitive point-defect complexes in Eu-doped crystals was investigated. It was shown that the formation of intermediate metastable magneto-sensitive point-defect complexes, and their subsequent spontaneous transformation into relaxation products, were thermally activated processes and did not depend upon the diffusion mobility of impurity-vacancy dipoles. It was shown that the magnetic field induced a transition of the magneto-sensitive point-defect complexes into a new state that could not occur in the absence of a magnetic field. Variation of the heat-treatment temperature made it possible to enhance the magnetoplastic effect by a factor of 3 and to create suitable conditions for the existence of magneto-sensitive complexes over a long period of time.

The Role of Thermally Activated Processes in the Formation of Magnetosensitive Point-Defect Complexes in NaCl:Eu Single Crystals. R.B.Morgunov, A.A.Baskakov, I.N.Trofimova, D.V.Yakunin: Physics of the Solid State, 2003, 45[2], 270-5