On charged impurity structures in liquid helium

Автор(и)

  • A.A. Pelmenev Branch of Talroze Institute for Energy Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka 142432, Russia
  • I.N. Krushinskaya Joint Institute for High Temperatures, Russian Academy of Sciences,Izhorskaya St. 13, Bd. 2, Moscow 125412, Russia
  • I.B. Bykhalo Branch of Talroze Institute for Energy Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka 142432, Russia
  • R.E. Boltnev Joint Institute for High Temperatures, Russian Academy of Sciences,Izhorskaya St. 13, Bd. 2, Moscow 125412, Russia

DOI:

https://doi.org/10.1063/1.4942760%20

Ключові слова:

nanoclusters, impurity-helium condensates, thermoluminescence, superfluid helium, stabilization of ions and radicals.

Анотація

The thermoluminescence spectra of impurity-helium condensates (IHC) submerged in superfluid helium have been observed for the first time. Thermoluminescence of impurity-helium condensates submerged in superfluid helium is explained by neutralization reactions occurring in impurity nanoclusters. Optical spectra of excited products of neutralization reactions between nitrogen cations and thermoactivated electrons were rather different from the spectra observed at higher temperatures, when the luminescence due to nitrogen atom recombination dominates. New results on current detection during the IHC destruction are presented. Two different mechanisms of nanocluster charging are proposed to describe the phenomena observed during preparation and warm-up of IHC samples in bulk superfluid helium, and destruction of IHC samples out of liquid helium.

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Опубліковано

2016-01-18

Як цитувати

(1)
Pelmenev, A.; Krushinskaya, I.; Bykhalo, I.; Boltnev, R. On Charged Impurity Structures in Liquid Helium. Fiz. Nizk. Temp. 2016, 42, 289-296.

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Низькотемпеpатуpна фізика пластичності та міцності

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