In this work, screening functions of Ichimaru and Utsumi, Farid et al. and Sarkar et al. are employed along with the Hartree and Taylor functions to study the relative influence of the exchange and correlation effect. The Ni-Cr liquid alloys are studied as a function of their composition at three different temperatures (T=800K, 1000K, 1200K). The present finding of electrical resistivity agrees within 2-12% with experimental findings when the H dielectric function is employed. | Communications in Physics, Vol. 24, No. 2 (2014), pp. 135-140 ELECTRICAL TRANSPORT PROPERTIES OF Ni-Cr BINARY ALLOYS P. H. SUTHAR Department of Physics, C U Shah Science College, Ahmedabad 380 014, Gujarat, India B. Y. THAKORE Department of Physics, Sardar Patel University, Vallabh Vidyanagar 388 120, Gujarat, India P. N. GAJJAR Department of Physics, University School of Sciences, Gujarat University, Ahmedabad 380 009, Gujarat, India E-mail: sutharpunit@ Received 09 December 2013 Accepted for publication 13 May 2014 Abstract. Electrical transport properties viz. electrical resistivity and thermal conductivity of Ni-Cr binary alloys are determined by our recognized single parametric potential model in a wide range of Cr concentration. In this work, screening functions of Ichimaru and Utsumi, Farid et al. and Sarkar et al. are employed along with the Hartree and Taylor functions to study the relative influence of the exchange and correlation effect. The Ni-Cr liquid alloys are studied as a function of their composition at three different temperatures (T=800K, 1000K, 1200K). The present finding of electrical resistivity agrees within 2-12% with experimental findings when the H dielectric function is employed. Keywords: Liquid alloys, Electrical resistivity, Pseudopotential, Exchange and correlation effects. I. INTRODUCTION The electrical transport properties of liquid metals and their alloys are of immense important theoretically as well as experimentally because of increasingly manifold interests of not only physicists but also chemists. During last three decades numbers of efforts are made to study electrical transport properties of liquid metals and their alloys. The Faber-Ziman [1-4] model remain successful in predictive the electrical transport properties of binary. Thakore et al. [3-4] have successfully reported that the structures and electrical transport properties using Ashcroft and our well established local model potential for different .
