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Observation of spin-locked electron spin echo envelope modulation

✍ Scribed by Y.C. Zhong; J.R. Pilbrow

Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
467 KB
Volume
222
Category
Article
ISSN
0009-2614

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✦ Synopsis

Electron spin echo envelope modulation (ESEEM) is observed in a coal sample utilizing a two-pulse sequence originally proposed by Hartmann and Hahn to generate a 'spin-locked echo'. It is experimentally shown that this spin-locked ESEEM (SLESEEM) is similar to three-pulse ESEEM rather than conventional two-pulse ESEEM with respect to the presence or absence of the sum and the difference frequencies, and the echo decay time. Besides, no phase-cycling is required for the SLESEEM experiment. A qualitative explanation of the new phenomena is suggested.

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