Electron Spin Resonance Investigations of the Molecular Motion of NO2 on Al2O3
(111) under Ultrahigh Vacuum Conditions

Schlienz, H.; Beckendorf, M.; Katter, U. J.; Risse, T.; Freund, Hans-Joachim

doi:10.1103/PhysRevLett.74.761

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Electron Spin Resonance Investigations of the Molecular Motion of NO₂ on Al₂O₃(111) under Ultrahigh Vacuum Conditions

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Schlienz, H., Beckendorf, M., Katter, U. J., Risse, T., & Freund, H.-J. (1995). Electron Spin Resonance Investigations of the Molecular Motion of NO₂ on Al₂O₃(111) under Ultrahigh Vacuum Conditions. Physical Review Letters, 74(5), 761-764. doi:10.1103/PhysRevLett.74.761.

Cite as: https://hdl.handle.net/21.11116/0000-000E-44DB-F

Abstract

We report on the first observation of electron spin resonance spectra of submonolayer coverages of small adsorbates on an epitaxially grown single crystal Al₂O₃ film under ultrahigh vacuum conditions. The spectra reveal a clear temperature and coverage dependence. The changes of linewidths and intensities as a function of surface temperature and coverage provide insight into diffusion processes on the Al₂O₃ surface.