Mass and temperature effects on the hyperfine coupling of atomic hydrogen isotopes in cages

H. Dilger, E. Roduner, R. Scheuermann, J. Major, M. Schefzik, R. Stößer, M. Päch, D. G. Fleming

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

The hyperfine coupling constant A of a hydrogen isotope confined in a cage differs from its vacuum value, demonstrating that the atom acts as a probe of its environment. Room-temperature values of A for muonium in different cube-shaped Si8O12 units (T8 units or octasilsesquioxanes), in H2O, and in D2O were determined with an accuracy of about 1 MHz. The results are compared with those obtained from high-resolution ESR on H in H2O, and D in D2O, and in different silsesquioxanes in the temperature range 40-300 K. Both the strong isotope effect and the temperature dependence are well described by a single-oscillator model of Roduner et al.. Striking differences seen between the different silsesquioxanes and between the porous Optipur and bulk Suprasil reflect varying spatial constraints and electronic interactions.

Original languageEnglish
Pages (from-to)482-486
Number of pages5
JournalPhysica B: Condensed Matter
Volume289-290
DOIs
Publication statusPublished - Aug 2000

Fingerprint

muonium
hydrogen isotopes
Isotopes
isotope effect
Thermal effects
temperature effects
Hydrogen
oscillators
vacuum
temperature dependence
probes
high resolution
room temperature
electronics
atoms
interactions
Temperature
temperature
Paramagnetic resonance
Vacuum

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Dilger, H., Roduner, E., Scheuermann, R., Major, J., Schefzik, M., Stößer, R., ... Fleming, D. G. (2000). Mass and temperature effects on the hyperfine coupling of atomic hydrogen isotopes in cages. Physica B: Condensed Matter, 289-290, 482-486. https://doi.org/10.1016/S0921-4526(00)00441-5

Mass and temperature effects on the hyperfine coupling of atomic hydrogen isotopes in cages. / Dilger, H.; Roduner, E.; Scheuermann, R.; Major, J.; Schefzik, M.; Stößer, R.; Päch, M.; Fleming, D. G.

In: Physica B: Condensed Matter, Vol. 289-290, 08.2000, p. 482-486.

Research output: Contribution to journalArticle

Dilger, H, Roduner, E, Scheuermann, R, Major, J, Schefzik, M, Stößer, R, Päch, M & Fleming, DG 2000, 'Mass and temperature effects on the hyperfine coupling of atomic hydrogen isotopes in cages', Physica B: Condensed Matter, vol. 289-290, pp. 482-486. https://doi.org/10.1016/S0921-4526(00)00441-5
Dilger, H. ; Roduner, E. ; Scheuermann, R. ; Major, J. ; Schefzik, M. ; Stößer, R. ; Päch, M. ; Fleming, D. G. / Mass and temperature effects on the hyperfine coupling of atomic hydrogen isotopes in cages. In: Physica B: Condensed Matter. 2000 ; Vol. 289-290. pp. 482-486.
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