A1 Refereed original research article in a scientific journal

Studies of Hydrogen Atom Recombination in Solid Hydrogen Deuteride




AuthorsWetzel, C. K.; Lee, D. M.; Sheludiakov, S.; Ahokas, J.; Vasiliev, S.; Khmelenko, V. V.

PublisherSPRINGER/PLENUM PUBLISHERS

Publishing placeNEW YORK

Publication year2025

JournalJournal of Low Temperature Physics

Journal name in sourceJOURNAL OF LOW TEMPERATURE PHYSICS

Journal acronymJ LOW TEMP PHYS

Number of pages11

ISSN0022-2291

eISSN1573-7357

DOIhttps://doi.org/10.1007/s10909-025-03281-8

Web address https://doi.org/10.1007/s10909-025-03281-8

Self-archived copy’s web addresshttps://research.utu.fi/converis/portal/detail/Publication/492043471


Abstract
We used the method of electron spin resonance (ESR) to investigate the temperature-dependent recombination rate of H atoms in solid molecular hydrogen deuteride (HD). A 1.5 mu m thick solid molecular HD film was deposited at a rate of 2 monolayer/s, onto a gold surface maintained at T=1.5 K. H and D atoms were accumulated in the film by maintaining radio-frequency electric discharge above the film for 19 days. After further storage of the sample for 48 h, at T < 1 K, the D atom signal vanished. The concentration of H atoms was monitored as the sample was warmed stepwise from 1.1 K to 2.8 K. The recombination rate of H atoms in solid HD was found to be proportional to temperature in this range.


Funding information in the publication
The authors greatly acknowledge the support by the National Science Foundation Grant No. DMR 2104756, the Academy of Finland Grant No. 317141, and the Jenny and Antti Wihuri Foundation. CKW acknowledges the support of the HEEP fellowship.


Last updated on 2025-30-06 at 14:02