Helium surface electron attachment to atomic hydrogen in applied magnetic field

Toshikazu Arai, Tomoyuki Mitsui, Hideki Yayama

Research output: Contribution to journalArticle


We measured reaction rates of electron attachment to atomic hydrogen on liquid helium surface at 0.3 K in applied magnetic fields up to 11 T. The lifetime of electron-hydrogen gas in two-dimensional mixture becomes longer as the magnetic field is increased. It is found that the reaction rate coefficient behaves like ∼B-2 and its value above 5 T is eight orders of magnitude smaller than the zero field value. We interpret our result that only electron spin singlet collisions produce negative hydrogen H-. It is consistent with the fact that the two bound electrons of H- are spin antiparallel.

Original languageEnglish
Pages (from-to)1549-1551
Number of pages3
JournalJournal of Physics and Chemistry of Solids
Issue number8-9
Publication statusPublished - Aug 1 2005


All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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