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

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 language	English
Pages (from-to)	142-145
Number of pages	4
Journal	Chemical Physics Letters
Volume	165
Issue number	2-3
DOIs	https://doi.org/10.1016/0009-2614(90)85419-D
Publication status	Published - 12 Jan 1990
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)
Physical and Theoretical Chemistry

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10.1016/0009-2614(90)85419-D

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

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.",

author = "Saik, {V. O.} and Anisimov, {O. A.} and Koptyug, {A. V.} and Molin, {Yu N.}",

year = "1990",

month = jan,

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doi = "10.1016/0009-2614(90)85419-D",

language = "English",

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pages = "142--145",

journal = "Chemical Physics Letters",

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T1 - Quantum beats in singlet-triplet transitions of radical pairs induced by a radio-frequency field

AU - Saik, V. O.

AU - Anisimov, O. A.

AU - Koptyug, A. V.

AU - Molin, Yu N.

PY - 1990/1/12

Y1 - 1990/1/12

N2 - 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.

AB - 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.

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