Electron-phonon coupling and longitudinal mechanical-mode cooling in a metallic nanowire

Hekking, Frank; Niskanen, A. O.; Pekola, Jukka

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Electron-phonon coupling and longitudinal mechanical-mode cooling in a metallic nanowire

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Title:	Electron-phonon coupling and longitudinal mechanical-mode cooling in a metallic nanowire
Author(s):	Hekking, Frank ; Niskanen, A. O. ; Pekola, Jukka
Date:	2008-01-02
Language:	en
Pages:	4 1-4
Department:	Department of Applied Physics
Series:	PHYSICAL REVIEW B, Volume 77, issue 3
ISSN:	2469-9950 1550-235X
DOI-number:	10.1103/PhysRevB.77.033401
Keywords:	electron-phonon, mechanical-mode cooling, nanowire
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Citation: Hekking , F , Niskanen , A O & Pekola , J 2008 , ' Electron-phonon coupling and longitudinal mechanical-mode cooling in a metallic nanowire ' , Physical Review B , vol. 77 , no. 3 , 033401 , pp. 1-4 . https://doi.org/10.1103/PhysRevB.77.033401
Abstract: We investigate electron-phonon coupling in a narrow suspended metallic wire, in which the phonon modes are restricted to one dimension but the electrons behave three-dimensionally. Explicit theoretical results related to the known bulk properties are derived. We find out that longitudinal vibration modes can be cooled by electronic tunnel refrigeration far below the bath temperature provided the mechanical quality factors of the modes are sufficiently high. The obtained results apply to feasible experimental configurations.

Permanent link to this item: http://urn.fi/URN:NBN:fi:aalto-201805222574 Email this Export to RefWorks QR Code Print BibTex Tweet