Size Effects on Surface Elastic Waves in a Semi-Infinite Medium with Atomic Defect Generation
Author
Source
Advances in Condensed Matter Physics
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-12-31
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
The paper investigates small-scale effects on the Rayleigh-type surface wave propagation in an isotopic elastic half-space upon laser irradiation.
Based on Eringen’s theory of nonlocal continuum mechanics, the basic equations of wave motion and laser-induced atomic defect dynamics are derived.
Dispersion equation that governs the Rayleigh surface waves in the considered medium is derived and analyzed.
Explicit expressions for phase velocity and attenuation (amplification) coefficients which characterize surface waves are obtained.
It is shown that if the generation rate is above the critical value, due to concentration-elastic instability, nanometer sized ordered concentration-strain structures on the surface or volume of solids arise.
The spatial scale of these structures is proportional to the characteristic length of defect-atom interaction and increases with the increase of the temperature of the medium.
The critical value of the pump parameter is directly proportional to recombination rate and inversely proportional to deformational potentials of defects.
American Psychological Association (APA)
Mirzade, F.. 2013. Size Effects on Surface Elastic Waves in a Semi-Infinite Medium with Atomic Defect Generation. Advances in Condensed Matter Physics،Vol. 2013, no. 2013, pp.1-11.
https://search.emarefa.net/detail/BIM-478865
Modern Language Association (MLA)
Mirzade, F.. Size Effects on Surface Elastic Waves in a Semi-Infinite Medium with Atomic Defect Generation. Advances in Condensed Matter Physics No. 2013 (2013), pp.1-11.
https://search.emarefa.net/detail/BIM-478865
American Medical Association (AMA)
Mirzade, F.. Size Effects on Surface Elastic Waves in a Semi-Infinite Medium with Atomic Defect Generation. Advances in Condensed Matter Physics. 2013. Vol. 2013, no. 2013, pp.1-11.
https://search.emarefa.net/detail/BIM-478865
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-478865