Stabilization of H and D atoms in krypton-helium nanocondensates
Abstract
Impurity-helium condensates formed by krypton nanoclusters containing atoms and molecules of hydrogen isotopes have been studied via an electron spin resonance (ESR) technique. Analysis of the ESR spectra has shown that most of the H and D atoms reside on the surfaces of Kr nanoclusters. Very large average concentrations have been obtained for H atoms (1.2ṡ10ṡ19cm-3) and D atoms (3.3ṡ19cm-3) in these experiments. Line narrowing has been observed for the highest concentration of D atoms stabilized in the Kr-He sample. Exchange tunneling reactions have been studied in Kr-He sample containing H and D atoms.
- Publication:
-
Low Temperature Physics
- Pub Date:
- May 2010
- DOI:
- 10.1063/1.3432245
- Bibcode:
- 2010LTP....36..382B
- Keywords:
-
- condensation;
- helium;
- hydrogen;
- impurities;
- isotopes;
- krypton;
- nanostructured materials;
- paramagnetic resonance;
- 61.72.U-;
- Doping and impurity implantation