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Coherent Relaxation and Acceleration of Atoms in Nonequilibrium Crystals
Author(s) -
Sugakov V. I.
Publication year - 1993
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.2221790106
Subject(s) - atom (system on chip) , relaxation (psychology) , non equilibrium thermodynamics , maxima and minima , excited state , physics , acceleration , atomic physics , crystal (programming language) , condensed matter physics , classical mechanics , quantum mechanics , mathematics , computer science , programming language , psychology , social psychology , mathematical analysis , embedded system
It is shown that in a nonequilibrium system of atoms, which are situated along a crystal line, in the presence of two minima of potential energy for every atom and in case of atom localization in the higher‐energy minimum a series of successive collisions resulting in acceleration of one of the atoms may occur. The above‐mentioned systems can appear in the vicinity of the coherent boundary of different phases in crystals or in the case of strong shear deformation. The excited crystal state, in which the successive atom relaxation leads to the energy rise of one of the atoms, is called “acceleron”. The role of various processes, which restrict the acceleron energy, is analyzed. The possibility to manifest the phenomenon is discussed.