Quantum beats in singlet-triplet transitions of radical pairs induced by a radio-frequency field

V. O. Saik, O. A. Anisimov, A. V. Koptyug, Yu N. Molin

Research output: Contribution to journalArticlepeer-review

Abstract

This Letter reports on the experimental observation of quantum beats stimulated by a resonance radio-frequency field in the recombination luminescence of radical-ion pairs. The beat frequency for solutions of p-terphenyl in squalane increases linearly with rf-field amplitude in the range 1 to 10 G in a rotating frame. The beat frequency corresponds to the theoretically calculated one, with amplitude twice as low as the theoretical one. This is attributed to contributions from the recombination of spin-uncorrelated radical-ion pairs.

Original languageEnglish
Pages (from-to)142-145
Number of pages4
JournalChemical Physics Letters
Volume165
Issue number2-3
DOIs
Publication statusPublished - 12 Jan 1990
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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