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Activation Process Model
Author(s) -
Tavgin V. L.,
Stepanov A. V.
Publication year - 1990
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221610111
Subject(s) - activation energy , atom (system on chip) , quantum , oscillation (cell signaling) , harmonic oscillator , quantum tunnelling , chemistry , series (stratigraphy) , statistical physics , atomic physics , physics , quantum mechanics , thermodynamics , computer science , paleontology , biochemistry , biology , embedded system
An attempt is made to produce an activation process model. The physical essence of the given model is different from that of the known activation model. The proposed model is based on following assumptions: 1) in the elementary activation interaction act the potential energy of moving atoms changes discretely or quantizes: the elementary activation act appears to be a series of quantum subsystems occurring in sequence (those subsystems may also be defined as identical harmonic oscillators); 2) an idempotent energy exchange between infrared radiation and interaction atoms causes their discrete translational motion, the process is characterized by absorption and subsequent emission of oscillation energy quantum series produced by atoms. The first principles in accordance with the model give formula, which describes the average energy of the translationally moving atoms participating in the elementary activation act. As an application of the model the formulae of solid state atomic diffusivity are derived as well as constants of first‐order chemical reaction rate. It is pointed out that the model may be applied to interpret superionic conductivity effect and atom or molecule tunnelling.