Electrical Transport in Polyvalent Liquid Bismuth and Antimony Metals

• Published in: Journal of Nano- and Electronic Physics Vol. 12; no. 2
• Main Authors: Gohil, D R, Vyas, P N, Bhatt, N K, Vyas, P R
• Format: Journal Article
• Language: English; Russian; Ukrainian
• Published: Sumy Ukraine Sumy State University, Journal of Nano - and Electronic Physics 2020
• Subjects: Antimony; Bismuth; Electrical resistivity; Melt temperature; Parameters; Reference systems; Thermal conductivity; Transport properties; Wave scattering
• ISSN: 2077-6772; 2306-4277
• DOI: 10.21272/jnep.12(2).02032

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.