Publication: May quasicrystals be good thermoelectric materials?
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2000-11-06
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American Institute of Physics
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Abstract
We present a theoretical analysis of quasicrystals (QCs) as potential thermoelectric materials. We consider a self-similar density of states model and extend the framework introduced in [G. D. Mahan and J. O. Sofo, Proc. Natl. Acad. Sci. U.S.A. 93, 7436 (1996)] to systems exhibiting correlated features in their electronic structure. We show that relatively high values of the thermoelectric figure of merit, ranging from 0.01 up to 1.6 at room temperature, may be expected for these systems. We compare our results with available experimental data on transport properties of QCs and suggest some potential candidates for thermoelectric applications.
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Ā©2000 American Institute of Physics.
The author warmly thanks T. Grenet, B. Harbrecht, C. Landauro, Z. M. Stadnik, A. L. Pope, A. P. Tsai, and T. M. Tritt for interesting comments and M. V. HernƔndez for a critical reading of the manuscript. This work is supported by UCM through Project No. PR64/99-8510.