Logarithmic decay of photochemically induced two-level systems in an organic glass

W. Breinl, J. Friedrich, D. Haarer

Research output: Contribution to journalArticlepeer-review

78 Scopus citations

Abstract

The recovery dynamics of photochemically labeled, metastable sites are investigated via photochemical hole burning in the visible spectral range. It is shown that, in a glass matrix, the recovery follows a logarithmic law. The experimental data are interpreted with the concept of two-level systems (TLSs). This interpretation is supported by the observed large isotope effect. The tunneling rates for protons and deuterons and the heights of the pertinent tunneling barriers are discussed.

Original languageEnglish
Pages (from-to)487-490
Number of pages4
JournalChemical Physics Letters
Volume106
Issue number6
DOIs
StatePublished - 11 May 1984
Externally publishedYes

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