Stabilization of H and D atoms in krypton–helium nanocondensates

• Published in: Физика низких температур
• Date: 2010
• Main Authors: Boltnev, R.E., Khmelenko, V.V., Lee, D.M.
• Format: Article
• Language: English
• Published: Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України 2010
• Subjects: Nanostructures and Impurity Centers in Cryogenic Environment
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/117037
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: Stabilization of H and D atoms in krypton–helium nanocondensates / R.E. Boltnev, V.V. Khmelenko, D.M. Lee // Физика низких температур. — 2010. — Т. 36, № 5. — С. 484-494. — Бібліогр.: 35 назв. — англ.

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 (1.2·10¹⁹ cm⁻³) and D atoms (3.3·10¹⁹ cm⁻³) in these experiments. For the highest concentration of D atoms stabilized in the Kr–He sample, line narrowing has been observed. Exchange tunneling reactions have been studied in Kr–He sample containing H and D atoms.