Publication Date:
2018-03-22
Description:
Author(s): S. Sheludiakov, J. Ahokas, J. Järvinen, L. Lehtonen, S. Vasiliev, Yu. A. Dmitriev, D. M. Lee, and V. V. Khmelenko The freezing temperature of solid hydrogen may be significantly lowered below its bulk value by encapsulating the sample in a restricted geometry. The authors report on an electron-spin resonance (ESR) study of H atoms, stabilized in highly porous solid mixtures of neon and molecular hydrogen at temperatures below 1 K. The ESR analysis shows that H atoms stabilize into two different substitutional sites of the Ne lattice and into H 2 clusters, formed in solid neon. The hydrogen atoms in H 2 clusters rapidly recombine upon raising the temperature from 0.1 to 0.3–0.6 K, which is attributed to a solid-liquid transition in the H 2 clusters formed in solid Ne. [Phys. Rev. B 97, 104108] Published Wed Mar 21, 2018
Keywords:
Structure, structural phase transitions, mechanical properties, defects
Print ISSN:
1098-0121
Electronic ISSN:
1095-3795
Topics:
Physics
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