Наукова електронна бібліотека
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періодичних видань НАН України
Stabilization of H and D atoms in krypton–helium nanocondensates
Репозиторій DSpace/Manakin
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Stabilization of H and D atoms in krypton–helium nanocondensates
Тема:
Nanostructures and Impurity Centers in Cryogenic Environment
Інший ID:
PACS: 76.30.Rn, 67.80.dk, 67.80.fh
Посилання:
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.
Підтримка:
This work was supported by National Science Foundation Grant DMR 0504683. The authors are grateful to E.P. Bernard and J. Järvinen for participation in the experiments, and to I.N. Krushinskaya for help in data analysis.
Дата:
2010
Переглядів:
1324
Завантажень:
600
Анотація:
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.
