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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2009, Volume 89, Issue 3, Pages 165–169
(Mi jetpl356)
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This article is cited in 5 scientific papers (total in 5 papers)
CONDENSED MATTER
Interaction of negative ions with the surface of inert liquids
A. M. Dyugaevab, P. D. Grigor'evab, E. V. Lebedevac a L. D. Landau Institute for Theoretical Physics, Russian Academy of Sciences
b Max Planck Institute for the Physics of Complex Systems
c Institute of Solid State Physics, Russian Academy of Sciences
Abstract:
The interaction potential of negative ions (electron bubbles) with the surface of liquid 4He, 3He, and Ne has been found. In addition to the electrostatic repulsion, the contribution of the long-range Van der Waals attraction of the electron bubble to the liquid surface has been also taken into account. Competition of these repulsion and attraction forces results in the formation of a potential barrier that prevents the motion of a negative ion from the liquid to the vacuum. The temperature and electric-field dependences of the lifetime of the bubble have been determined. The theory has been compared with the experiments with negative ions in liquid 4He. In contrast to the conventional idea based on the hypothesis of the quantum tunneling of an electron from a bubble to a vacuum, our theory is based on the Kramers’ diffusion model of the classical escape of the bubble over the potential barrier. In this model, a low-dynamic-friction approximation is applicable to liquid 4He owing to a high mobility of negative ions in the superfluid.
Received: 09.12.2008 Revised: 11.01.2009
Citation:
A. M. Dyugaev, P. D. Grigor'ev, E. V. Lebedeva, “Interaction of negative ions with the surface of inert liquids”, Pis'ma v Zh. Èksper. Teoret. Fiz., 89:3 (2009), 165–169; JETP Letters, 89:3 (2009), 145–149
Linking options:
https://www.mathnet.ru/eng/jetpl356 https://www.mathnet.ru/eng/jetpl/v89/i3/p165
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Abstract page: | 216 | Full-text PDF : | 102 | References: | 54 |
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