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Transient nutations in electron spin resonance

โœ Scribed by P.W. Atkins; A.J. Dobbs; K.A. McLauchlan

Publisher
Elsevier Science
Year
1974
Tongue
English
Weight
316 KB
Volume
25
Category
Article
ISSN
0009-2614

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โœฆ Synopsis

Trzmsient nut~tions ofnbsorption and dispersion mode ESR signals from fluid soltrtions arc reported. ;tnd tkc coffditions for their appearance analysed. Their use in measuring the microwave field in the cavity and in the datcction of exchange fxocesses are described. When a twoelevei system is brought rapidly into resonance the detected signal may osritlate [I, 21.

This effect was first observed in NMR, for there the period of oscillation is long and the signal damping sIow on account of the sfow refaxation of the nuciei: radiation can be applied in a time short compared with the signal decay, and measurements need not commence immediately after the transitions begin.

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