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Accelerated mass transfer in VzOs monocrystals at selective action of IR—laser radiationDr Oleg A. Plaksin and Dr1 Vladimir A. StepanovThe Institute of Physics & Power Engineering,SU-249020,Obninsk, Kaluga region, USSRABSTRACTUnder continuous COt—laser radiation an acceleration of admixture diffusion processes was observed. It hasbeen shown that at laser radiation excitation of the oxygen system (01) in VzOs the anomalies of the diffusionprocesses kinetics depend on the character of phase transitions connected with oxygen vacancies11 INTRODUCTIONLaser radiation effect causes nonequilibrium conditions of diffusion processes, phase transitions and chemi—cal reactions in solids1 In case of non—resonance of laser radiation a change in the kinetics of the processesmentioned is connected with the temperature non—equilibrium1 The resonance effect of radiation may influence dif—ferent processes due to excitation of inner degrees of solids1 The paper shows experimentally possible initiationof diffusion prcesses as a result of selective excitation by IR—laser radiation of certain types of crystal lat—tice oscillations, Such initiation is possible if the oscillations excited govern the processes initiated1The experiments have been carried out with VZO5, the possibility of selective excitation of various oscilla—tions in a crystal lattice for which has been shown on the base of IR—spectra4. The quasilayered structure ofVOs consists of closely—paced V-O—planes (010) and of 01 atoms between them. The absorption lines (7OO—93O)ciand (97O-IO5O)cm4 (cf.Fig.1) are connected with the oscillations of atoms along closely—packed V—O—planes and |
