Stabilization of hydrogen atoms in aggregates of krypton nanoclusters immersed in superfluid helium Academic Article uri icon


  • Impurity-helium condensates (IHCs) containing krypton and hydrogen atoms immersed in superfluid H4 e have been studied via cw electron-spin-resonance (ESR) techniques. The IHCs are gel-like aggregates of nanoclusters composed of krypton and hydrogen atoms. We have found that very high average ( 1019 cm-3) and local (6 1019 cm-3) concentrations of hydrogen atoms can be stabilized in these samples. The analysis of ESR line positions and shapes shows that most of the H atom population resides in solid H2 layers on the krypton nanocluster surfaces. High concentrations of atomic hydrogen achieved in IHCs provide an important step in the search for collective magnetic and quantum statistical phenomena at lower temperatures. 2009 The American Physical Society.

published proceedings


altmetric score

  • 3

author list (cited authors)

  • Boltnev, R. E., Bernard, E. P., Jaervinen, J., Khmelenko, V. V., & Lee, D. M.

citation count

  • 15

complete list of authors

  • Boltnev, RE||Bernard, EP||Jaervinen, J||Khmelenko, VV||Lee, DM

publication date

  • May 2009