A1 Refereed original research article in a scientific journal
Five-quantum coherence of I = 5/2 nuclei: Al-27 in an Al2O3 single crystal
Authors: Kaikkonen A, Ylinen EE, Punkkinen M
Publisher: ACADEMIC PRESS INC
Publication year: 1998
Journal:: Journal of Magnetic Resonance
Journal name in source: JOURNAL OF MAGNETIC RESONANCE
Journal acronym: J MAGN RESON
Volume: 133
Issue: 1
First page : 123
Last page: 128
Number of pages: 6
ISSN: 1090-7807
DOI: https://doi.org/10.1006/jmre.1998.1446
Abstract
Optimal conditions were calculated for excitation and detection of the five-quantum coherence of quadrupolar nuclei with I = 5/2 in single crystals, observed by the two-pulse sequence (theta(1))(x) - tau(1) - (theta(2))(alpha) - tau(2), where alpha is the phase cycling angle. Variations in the pulse lengths, the relative values of the nutation frequency omega(1) = gamma B-1, and the quadrupolar frequency omega(Q) as well as in the resonance offset were taken into account. In addition, the effect of the pulse length on the intensity of spectral lines was considered. Theoretical results were compared with experiments on Al-27 nuclei in an Al2O3 single crystal. (C) 1998 Academic Press.
Optimal conditions were calculated for excitation and detection of the five-quantum coherence of quadrupolar nuclei with I = 5/2 in single crystals, observed by the two-pulse sequence (theta(1))(x) - tau(1) - (theta(2))(alpha) - tau(2), where alpha is the phase cycling angle. Variations in the pulse lengths, the relative values of the nutation frequency omega(1) = gamma B-1, and the quadrupolar frequency omega(Q) as well as in the resonance offset were taken into account. In addition, the effect of the pulse length on the intensity of spectral lines was considered. Theoretical results were compared with experiments on Al-27 nuclei in an Al2O3 single crystal. (C) 1998 Academic Press.
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