Electron transfer and physical and chemical processes at low temperatures

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We summarize some phenomena that occur at temperatures of the order of 15K, and are dominated by quantum mechanical tunneling. Although electron tunneling dominates many conduction processes at low temperatures, we discuss evidence that phenomena like oxidation, as well as the solution of alkali metals in ammonia, can also be dominated by electron tunneling. Both phenomena demonstrate that the chemical potential of a metastable system can equilibrate at low temperatures by electron tunneling. The case of alkali metal clusters covered with ammonia is contrasted to covering the clusters with Xe. In this case changes in the activated conduction are observed ... continued below

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9 p.

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Strongin, M.; Xia, B. & Jacobsen, F.M. October 1, 1995.

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Description

We summarize some phenomena that occur at temperatures of the order of 15K, and are dominated by quantum mechanical tunneling. Although electron tunneling dominates many conduction processes at low temperatures, we discuss evidence that phenomena like oxidation, as well as the solution of alkali metals in ammonia, can also be dominated by electron tunneling. Both phenomena demonstrate that the chemical potential of a metastable system can equilibrate at low temperatures by electron tunneling. The case of alkali metal clusters covered with ammonia is contrasted to covering the clusters with Xe. In this case changes in the activated conduction are observed which are consistent with the dielectric constant of the rare gas.

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9 p.

Notes

OSTI as DE96000425

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  • 6. international conference on hopping and related phenomena, Jerusalem (Israel), 27-30 Aug 1995

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  • Other: DE96000425
  • Report No.: BNL--62195
  • Report No.: CONF-9508166--1
  • Grant Number: AC02-76CH00016
  • Office of Scientific & Technical Information Report Number: 110762
  • Archival Resource Key: ark:/67531/metadc620937

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Office of Scientific & Technical Information Technical Reports

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  • October 1, 1995

Added to The UNT Digital Library

  • June 16, 2015, 7:43 a.m.

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  • Nov. 19, 2015, 10:32 p.m.

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Strongin, M.; Xia, B. & Jacobsen, F.M. Electron transfer and physical and chemical processes at low temperatures, article, October 1, 1995; Upton, New York. (https://digital.library.unt.edu/ark:/67531/metadc620937/: accessed May 22, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.