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Basics and features of spin-locked electron spin echo envelope modulation

✍ Scribed by Gunnar Jeschke; Arthur Schweiger

Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
441 KB
Volume
231
Category
Article
ISSN
0009-2614

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✦ Synopsis

It is demonstrated that the spin-locked electron spin echo envelope modulation (ESEEM) experiment recently introduced by Zhong and Pilbrow [Chem. Phys. Letters 222 (1994) 5921 does not yield the same information as the conventional three-pulse ESEEM experiment because of the hyperfine decoupling inherent in the spin-lock pulse. A short theoretical description of the spin-locked ESEEM approach is given and conditions are discussed under which the hyperfine decoupled NMR spectrum can indirectly be measured via the electron spin echo amplitude. The theoretical predictions are verified experimentally for different spin-lock fields.

πŸ“œ SIMILAR VOLUMES

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✍ Y.C. Zhong; J.R. Pilbrow πŸ“‚ Article πŸ“… 1994 πŸ› Elsevier Science 🌐 English βš– 467 KB

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 conventio

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