Peculiarities of the Dependence of the Strain Coefficient on the Deformation of Metal Films

Authors K.V. Tyschenko1 , L.V. Odnodvorets1 , C.J. Panchal2 , I.Yu. Protsenko1
Affiliations

1 Sumy State University, Rymsky-Korsakov Str., 2, 40007 Sumy, Ukraine

2 Applied Physics Department, Faculty of Technology and Engineering, the M. S.University of Baroda, Vadodara, 390001 Gujarat, India

2 Applied Physics Department, Faculty of Technology and Engineering, the M. S.University of Baroda, Vadodara, 390001 Gujarat, India

Е-mail [email protected]
Issue Volume 4, Year 2012, Number 4
Dates Received 02 December 2012; published online 29 December 2012
Citation K.V. Tyschenko, L.V. Odnodvorets, C.J. Panchal, I.Yu. Protsenko, J. Nano- Electron. Phys. 4 No 4, 04014 (2012)
DOI
PACS Number(s) 68.60. Bs, 68.65.Ac
Keywords Strain coefficient, Double-layer films, Solid solution (6) , Instantaneous strain coefficient.
Annotation
We propose a phenomenological theory to explain the physical nature of the maximum or minimum in the dependence of the instantaneous longitudinal strain coefficient, γli, versus the strain, εl, in double-layer films Fe/Cr, Cu/Cr and Fe/a-Gd. The theory is based on the analysis of extremum (maximum or minimum), which is obtained by simplifying the equation ∂γli/∂εl = 0. It is concluded that the appearance of a maximum or minimum is caused by both non-linear deformation processes in εl and possible structural changes in the films.

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