Electron-phonon coupling and longitudinal mechanical-mode cooling in a metallic nanowire
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© 2008 American Physical Society (APS). http://www.aps.org/
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date
2008
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en
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033401/1-4
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Physical Review B, Volume 77, Issue 3
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.Description
Keywords
electron-phonon coupling, metallic wires, electrons, refrigeration
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Citation
Hekking, F. W. J. & Niskanen, A. O. & Pekola, Jukka. 2008. Electron-phonon coupling and longitudinal mechanical-mode cooling in a metallic nanowire. Physical Review B. Volume 77, Issue 3. 033401/1-4. ISSN 1098-0121 (printed). DOI: 10.1103/physrevb.77.033401.