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Calculation of the Thermopower of Ni-P Amorphous Alloys

Published online by Cambridge University Press:  01 January 1992

James C. Swihart ,
Hyungjin Yang  and
Donald M.C. Nicholson
James C. Swihart
Affiliation:
Physics Department, Indiana University, Bloomington, IN 47405
Hyungjin Yang
Affiliation:
Physics Department, Indiana University, Bloomington, IN 47405
Donald M.C. Nicholson
Affiliation:
Oak Ridge National Laboratory,Oak Ridge,TN 37831
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Abstract

We have modeled the Ni-P amorphous alloy system by a set of supercells on which we have carried out calculations of electronic and transport properties. The thermopower is determined by calculating the energy dependence of the dc electrical conductivity from the Kubo formalism. At 15% P we find -0.015 μV/K2 for the thermopower divided by the temperature, while for 25% P the calculated value is +0.008 μV/K2, in reasonable agreement with experiment, particularly with regard to the change of sign with concentration.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 291: Symposium O – Materials Theory and Modeling , 1992 , 419
Copyright
Copyright © Materials Research Society 1993

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References

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