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Thermoelectric Bismuth Wire Array Composites

Published online by Cambridge University Press:  10 February 2011

T. E. Huber ,
M. J. Graf  and
C. A Foss
T. E. Huber
Affiliation:
Howard University, Washington, DC 20059, thuber@howard.edu, edtech01@erols.com
M. J. Graf
Affiliation:
Department of Physics, Boston College, Chestnut Hill, MA 02467, grafrn@bc.edu
C. A Foss
Affiliation:
Department of Chemistry, Georgetown University, Washington, DC, cfoss@gusun.edu
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Abstract

The resistance R of a high density array of 200 nm diameter wires in anodic alumina is studied experimentally. R decreases from 300 K down to 0.3 K. An anomalous drop in R was found at T<50 K. Possible explanations are considered, including one based on the onedimensional quantum size effect. Also, the large magnetoresistance is suggestive of weaklocalization effects. The implication for the thermoelectric properties is discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 545: Symposium Z – Thermoelectric Materials 1998 - The Next Generation… , 1998 , 227
Copyright
Copyright © Materials Research Society 1999

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