Isotopic shifts of the rotational states of interstitial oxygen in germanium

N. Aichele, U. Gommel, K. Laßmann, F. Maier, F. Zeller, E. E. Haller, K. M. Itoh, L. I. Khirunenko, V. Shakhovtsov, B. Pajot, E. Fogarassy, H. Müssig

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By phonon spectroscopy we find in isotopically enriched Ge:Oi crystals Ge-isotope associated shifts of the rotational resonances that are larger than compatible with the linewidth in natural Ge if only the rotation of the quasi-free Ge2O molecule is considered. Because of the reduced isotope scattering of the phonons in the enriched Ge the position of higher excited states could be determined. This may improve the estimate of the height of the axial potential barrier.

Original languageEnglish
Pages (from-to)47-52
Number of pages6
JournalMaterials Science Forum
Issue numberPART 1
Publication statusPublished - 1997 Jan 1



  • Ge:O
  • Isotope shift
  • Phonon spectroscopy

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Aichele, N., Gommel, U., Laßmann, K., Maier, F., Zeller, F., Haller, E. E., Itoh, K. M., Khirunenko, L. I., Shakhovtsov, V., Pajot, B., Fogarassy, E., & Müssig, H. (1997). Isotopic shifts of the rotational states of interstitial oxygen in germanium. Materials Science Forum, 258-263(PART 1), 47-52.