May quasicrystals be good thermoelectric materials?



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Maciá Barber, Enrique Alfonso (2000) May quasicrystals be good thermoelectric materials? Applied physics letters, 77 (19). pp. 3045-3047. ISSN 0003-6951

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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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©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. Hernández for a critical reading of the manuscript. This work is supported by UCM through Project No. PR64/99-8510.

Uncontrolled Keywords:Al-Cu-Fe; Icosahedral quasi-crystals; Transport-properties; Thermal-conductivity; Electronic-structure; Alloys; Spectroscopy; Clusters; Refrigeration; Approximants
Subjects:Sciences > Physics > Materials
Sciences > Physics > Solid state physics
ID Code:44824
Deposited On:02 Nov 2017 16:29
Last Modified:02 Nov 2017 16:29

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