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Radio-frequency-driven electron-spin-echo-envelope-modulation spectroscopy

✍ Scribed by Herman Cho; Susanne Pfenninger; Jörg Forrer; Arthur Schweiger

Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
706 KB
Volume
180
Category
Article
ISSN
0009-2614

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✦ Synopsis

A pulsed EPR technique for generating electron-spin-echo-envelope modulations in paramagnetic systems that do not contain nonsecular hyperiine interactions is proposed. Strong continuous radio-frequency irradiation tuned to one of the unperturbed nuclear transition frequencies is shown to provide a mechanism whereby echo modulations may be produced in such systems. A theoretical treatment of this phenomenon is given and the predictions verified experimentally on radicals in solution. Technical details about the high-pulse power tracking circuit are given.

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