Temperature dependent atomic transport properties of liquid Sn

A simple analytical model for atomic motion of Tankeshwar et al. [J. Phys.: Condens. Matter 3 , 3173 (1991)] is used to obtain velocity autocorrelation function (VACF) with the inter-atomic potential and the pair correlation function as required inputs for liquid Sn. For the electron-ion interaction...

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Bibliographic Details
Published in:The European physical journal. B, Condensed matter physics Condensed matter physics, 2014-02, Vol.87 (2), Article 39
Main Authors: Patel, Amit B., Bhatt, Nisarg K., Thakore, Brijmohan Y., Vyas, Pulastya R., Jani, Ashwinkumar R.
Format: Article
Language:English
Subjects:
Complex Systems
Condensed Matter Physics
Fluid- and Aerodynamics
Physics
Physics and Astronomy
Regular Article
Solid State Physics
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Summary:A simple analytical model for atomic motion of Tankeshwar et al. [J. Phys.: Condens. Matter 3 , 3173 (1991)] is used to obtain velocity autocorrelation function (VACF) with the inter-atomic potential and the pair correlation function as required inputs for liquid Sn. For the electron-ion interaction the modified empty-core potential is used, which represents the orthogonalisation effect due to s -core states in such sp -bonded metals. Temperature dependence of structure factor is considered through temperature dependent potential parameter in the pair potential. The coherent behaviour of liquid Sn in terms of the dynamic structure factor employing viscoelastic theory has also been studied. Intrinsic temperature effect has been studied through damping term\hbox{${\exp}( {-\frac{{\pi k}_{{B}} {T}}{{2k}_{{F}} }{r}} )$} exp (−πkBT2kFr)in the pair potential. The predicted results for VACF, cosine power spectrum, mean square displacement, diffusion and viscosity coefficients have been compared with recent available data, and a good agreement has been achieved.
ISSN:1434-6028
1434-6036
DOI:10.1140/epjb/e2014-40888-7