Tunneling time for electron transfer reactions

Abraham Nitzan, Joshua Jortner, Joshua Wilkie, Alexander L. Burin, Mark A Ratner

Research output: Contribution to journalArticle

78 Citations (Scopus)

Abstract

The tunneling time for nonadiabatic electron transfer reactions described within the superexchange model is estimated using a Biittiker type internal clock: the electron is taken to possess two internal spin states that are weakly coupled on the bridge. By studying the transition probability between these channels during the tunneling process the traversal time through the bridge can be estimated. Like the Büttiker-Landauer result it is linear in the bridge length, but its dependence on the barrier energy UB approaches the Büttiker-Landauer form only in the limit of strong interstate coupling (broad band). In the "normal" superexchange (weak coupling) limit it is inversely proportional to the barrier energy.

Original languageEnglish
Pages (from-to)5661-5665
Number of pages5
JournalJournal of Physical Chemistry B
Volume104
Issue number24
Publication statusPublished - Jun 22 2000

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electron transfer
Energy barriers
Electrons
Electron tunneling
transition probabilities
clocks
Clocks
broadband
energy
electrons

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Engineering(all)

Cite this

Nitzan, A., Jortner, J., Wilkie, J., Burin, A. L., & Ratner, M. A. (2000). Tunneling time for electron transfer reactions. Journal of Physical Chemistry B, 104(24), 5661-5665.

Tunneling time for electron transfer reactions. / Nitzan, Abraham; Jortner, Joshua; Wilkie, Joshua; Burin, Alexander L.; Ratner, Mark A.

In: Journal of Physical Chemistry B, Vol. 104, No. 24, 22.06.2000, p. 5661-5665.

Research output: Contribution to journalArticle

Nitzan, A, Jortner, J, Wilkie, J, Burin, AL & Ratner, MA 2000, 'Tunneling time for electron transfer reactions', Journal of Physical Chemistry B, vol. 104, no. 24, pp. 5661-5665.
Nitzan A, Jortner J, Wilkie J, Burin AL, Ratner MA. Tunneling time for electron transfer reactions. Journal of Physical Chemistry B. 2000 Jun 22;104(24):5661-5665.
Nitzan, Abraham ; Jortner, Joshua ; Wilkie, Joshua ; Burin, Alexander L. ; Ratner, Mark A. / Tunneling time for electron transfer reactions. In: Journal of Physical Chemistry B. 2000 ; Vol. 104, No. 24. pp. 5661-5665.
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