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Phonon-drag thermopower of a ballistic quantum wire
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UNSPECIFIED (1997) Phonon-drag thermopower of a ballistic quantum wire. PHYSICAL REVIEW B, 56 (16). pp. 10044-10047. ISSN 0163-1829.
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Abstract
The phonon-drag thermopower S-g of a quasi-one-dimensional ballistic quantum wire is calculated by using the Onsager relation to relate S-g to the phonon-drag contribution to Q/Delta V, where Q is the heat flux produced by a small voltage difference Delta V across the wire. A general formula is derived for S-g and numerical results are presented for when two electronic subbands are involved. The dependence of S-g on the wire width exhibits peaks similar to those Shown by the diffusion thermopower S-d. It is found, however, that the S-g maxima are up to 50-100 times larger than the corresponding ones for S-d when T=1-10 K. The dominance of S-g is apparent for all the values of the wire width and temperatures investigated. [S0163-1829(97)51040-X].
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QC Physics | ||||
Journal or Publication Title: | PHYSICAL REVIEW B | ||||
Publisher: | AMERICAN PHYSICAL SOC | ||||
ISSN: | 0163-1829 | ||||
Official Date: | 15 October 1997 | ||||
Dates: |
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Volume: | 56 | ||||
Number: | 16 | ||||
Number of Pages: | 4 | ||||
Page Range: | pp. 10044-10047 | ||||
Publication Status: | Published |
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