Hostname: page-component-77c89778f8-5wvtr Total loading time: 0 Render date: 2024-07-21T04:24:33.888Z Has data issue: false hasContentIssue false
  • English
  • Français

On The Thermoelectric Power And Transport Properties Of Quasicrystals

Published online by Cambridge University Press:  10 February 2011

F. Cyrot-Lackmann
F. Cyrot-Lackmann*
Affiliation:
CNRS-LEPES, BP 166 X, Grenoble Cedex 9, France
Get access

Extract

Stable quasicrystals exhibit specific and unusual physical properties, such as, diamagnetism, low electrical conductivity, low thermal conductivity, and large themoelectric power at room temperature. These properties can be understood with a Bragg's reflexions scheme due to their dense filled reciprocal space.This leads to small gaps on the Fermi surface (some tenths of eV), much narrower than the usual Hume-Rothery ones (of order of 0.5 eV) which explain their stability. These gaps lead to the existence of quasi Umklapp processes, crucial for the interpretation of thermoelectric power. In some cases, the positive phonon drag contribution due to Umklapp processes, add with the electronic one's and dominates at room temperature with a large positive thermoelectric power. A crude estimate of the figure of merit gives some hope for applications of some quasicrystals and high approximants as new thermoelectric materials.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 553: Symposium LL – Quasicrystals , 1998 , 397
Copyright
Copyright © Materials Research Society 1999

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

[1] Proceeding of ICQ6, Eds Takeuchi, S. and Fujiwara, T. (World Scientific, Singapore, 1998). C. Janot, Quasicrystals A Primer, (Oxford 1994).Google Scholar
[2] Cyrot-Lackmann, F., in New Horizons in Quasicrystals, Eds Goldman, A., Sordelet, D., Thiel, P. and Dubois, J. M., (World Scientific, 1997), p. 216.Google Scholar
[3] Friedel, J. and Denoyer, F., C.R. Acad. Paris, 305, 171,(1987).A.P. Smith and N.W. Ashcroft, Phys. Rev. Lett. 59, 136, (1987).Google Scholar
[4] Kalugin, P.A., et al Phys. Rev. 53, 14145 (1996).Google Scholar
[5] Cyrot-Lackmann, F., Solid State Comm. 103, 123, (1997).Google Scholar
[6] Biggs, B. D., Pierce, F. S. and Poon, S. J., Europhysics Lett. 19, 415, (1992).Google Scholar
[7] Mott, N. F. and Jones, H., the Theory of the Properties of Metals and Alloys, (Dover Publications, 1958).Google Scholar
[8] Cyrot-Lackmann, F., ICQ6, p.609, Eds Takeuchi, S. and Fujiwara, T., (World Scientific, Singapore, 1998).Google Scholar
[9] Giroud, F. et al. LT 21, Czech. Joum. of Physics 46, 2709, (1996).Google Scholar
[10] Goldsmith, H.J., Applications of the rmoelectricity, Butler and Tanner, U.K. (1960). C. Wood, Reports on Progress in Physics, 51, 459, (1988).Google Scholar
[11] Perrot, A. et al. Proceeding of ICQ5, p. 588, Eds Janot, C. and Mosseri, R. (World Scientific, Singapore, 1998).Google Scholar
[12] Perrot, A., Thesis INPL, Nancy (1987).Google Scholar
[13] Sales, B. C. et al. Science 272, 1325 (1996).Google Scholar
[14] Haberkern, R., in Heraus school, edited by Suck, J.B., Schreiber, M., P. Haussler (Springer 1998).Google Scholar