Studies of nuclear polarization of hydrogen atoms embedded in solid molecular hydrogen and hydrogen deuteride films
D. M. Lee; V. V. Khmelenko; S. Sheludiakov; J. Järvinen; J. Ahokas; S. Vasiliev
Studies of nuclear polarization of hydrogen atoms embedded in solid molecular hydrogen and hydrogen deuteride films
D. M. Lee
V. V. Khmelenko
S. Sheludiakov
J. Järvinen
J. Ahokas
S. Vasiliev
AMER INST PHYSICS
Julkaisun pysyvä osoite on:
https://urn.fi/URN:NBN:fi-fe2021042821820
https://urn.fi/URN:NBN:fi-fe2021042821820
Tiivistelmä
We report on an electron-spin resonance study of nuclear polarization of hydrogen atoms embedded in solid H-2 and HD films at temperatures 0.1-1.5 K and in a high magnetic field of 4.6 T. Similar to our previous work [Phys. Rev. Lett. 122, 225301 (2019)], we observed a build-up of the spontaneously (p similar or equal to 0.35) and highly (p similar or equal to 0.75) nuclear polarized phases of H atoms in the as-deposited H-2 films. However, we did not obtain an enhanced nuclear polarization of H atoms in the regions of their small local concentration. We also failed to observe enhanced nuclear polarization for H atoms in the annealed H-2 films as well as in the as-deposited HD sample. These observations tend to support our previous explanation for the build-up of high nuclear polarization due to the formation of weakly-bound triplet H-2 molecules. Published under license by AIP Publishing.
Kokoelmat
- Rinnakkaistallenteet [19207]