Electrical Transport in Polyvalent Liquid Bismuth and Antimony Metals

Authors D.R. Gohil1, P.N. Vyas1, N.K. Bhatt1, P.R. Vyas2

1Department of Physics, Maharaja Krishnakumarsinhji Bhavnagar University, Bhavnagar-364001, Gujarat, India

2Department of Physics, School of Sciences, Gujarat University, Ahmedabad-380009, Gujarat, India

Е-mail [email protected]
Issue Volume 12, Year 2020, Number 2
Dates Received 10 February 2020; revised manuscript received 09 April 2020; published online 25 April 2020
Citation D.R. Gohil, P.N. Vyas, N.K. Bhatt, P.R. Vyas, J. Nano- Electron. Phys. 12 No 2, 02032 (2020)
DOI https://doi.org/10.21272/jnep.12(2).02032
PACS Number(s) 72.15.Eb, 61.25.Mv
Keywords Electrical resistivity (5) , Thermoelectric power (2) , Thermal conductivity (3) , Pseudopotential (15) , Liquid metals (4) .

Accurate assessment of electrical transport for heavy polyvalent metals pause challenge due to complex electronic band structure, where s-wave scattering theory due to Ziman is failed. Improving schemes like t-matrix resistivity and self-consistent approach are proposed. In the present study, we employ self-consistent approach to compute electrical resistivity () in liquid Bi and Sb at different temperatures (T). Structural input is estimated through charged hard-sphere reference system. Electron-ion interaction is modelled by modified empty-core pseudopotential including electron exchange and correlation effects. Since only two parameters are independent, as the core radius RC ( 0.51 RaZ − 1⁄3) is a theoretical input, we have tuned, once and for all, the single parameter to find at melting temperature. The same set of parameters is used to deduce high-T resistivity, thermal conductivity and thermo-electric power. Overall good agreement is observed for transport properties for both metals. The present fitting scheme and so deduced results are discussed in comparison with other findings.

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