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

Frank Hekking, A. O. Niskanen, Jukka Pekola

Research output: Contribution to journalArticleScientificpeer-review

23 Citations (Scopus)
111 Downloads (Pure)

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.
Original languageEnglish
Article number033401
Pages (from-to)1-4
Number of pages4
JournalPhysical Review B
Volume77
Issue number3
DOIs
Publication statusPublished - 2 Jan 2008
MoE publication typeA1 Journal article-refereed

Keywords

  • electron-phonon
  • mechanical-mode cooling
  • nanowire

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