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Richard Balog

Transmission and Trapping of Cold Electrons in Water Ice

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  • Richard Balog
  • Peter Cicman, Denmark
  • David Field
  • Nykola C. Jones
  • Linda Feketeova, Aarhus University, Denmark
  • Kristin Hoydalsvik, Aarhus University, Denmark
  • Thomas A. Field, Queen's University Belfast, United Kingdom
  • Jean-Pierre Ziesel, Universite Paul Sabatier, France
  • Department of Physics and Astronomy

Experiments are reported that show currents of low energy (“cold”) electrons pass
unattenuated through crystalline ice at 135 K for energies between zero and 650 meV, up to the maximum studied film thickness of 430 bilayers, showing negligible apparent trapping. By contrast, both porous amorphous ice and compact crystalline ice at 40 K show efficient electron trapping. Ice at intermediate temperatures reveals metastable trapping that decays within a few hundred seconds at 110 K. Our results are the first to demonstrate full transmission of cold electrons in high temperature water ice and the phenomenon of temperature-dependent trapping.

Original languageEnglish
JournalJournal of Physical Chemistry Part A: Molecules, Spectroscopy, Kinetics, Environment and General Theory
Volume115
Pages (from-to)6820
Number of pages5
ISSN1089-5639
Publication statusPublished - 2011

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