Low Temperature Physics: 41, 419 (2015); https://doi.org/10.1063/1.4922090
Физика Низких Температур: Том 41, Выпуск 6 (Июнь 2015), c. 541-545    ( к оглавлению , назад )

Optical spectroscopy and current detection during warm-up and destruction of impurity–helium condensates

I.N. Krushinskaya1, R.E. Boltnev1,2, I.B. Bykhalo1, A.A. Pelmenev1,2, V.V. Khmelenko3, and D.M. Lee3

1Branch of Talroze Institute for Energy Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka 142432, Moscow Region, Russia
E-mail: pelmenev@binep.ac.ru

2Joint Institute for High Temperatures, Russian Academy of Sciences, Moscow 125412, Russia

3Institute for Quantum Science and Engineering, Department of Physics and Astronomy, Texas A&M University, College Station, Texas 77843, USA

Received October 30, 2014


New experimental results on detection of optical spectra and ion currents during destruction of impurity–helium condensates (IHCs) have been obtained. It is shown that emission during IHC sample destruction is accompanied by current pulses, pressure peaks and temperature changes. The molecular bands of excimer molecules XeO* are assigned to molecules stabilized in films of molecular nitrogen covering the heavier cores of impurity clusters which form impurity–helium condensates.

PACS: 76.30.Rn Free radicals;
PACS: 78.60.–b Other luminescence and radiative recombination;
PACS: 61.46.–w Structure of nanoscale materials.

Key words: free radicals, optical spectroscopy, condensed helium, nanoclusters.

Published online: April 23, 2015