A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä
Five-quantum coherence of I = 5/2 nuclei: Al-27 in an Al2O3 single crystal
Tekijät: Kaikkonen A, Ylinen EE, Punkkinen M
Kustantaja: ACADEMIC PRESS INC
Julkaisuvuosi: 1998
Lehti:: Journal of Magnetic Resonance
Tietokannassa oleva lehden nimi: JOURNAL OF MAGNETIC RESONANCE
Lehden akronyymi: J MAGN RESON
Vuosikerta: 133
Numero: 1
Aloitussivu: 123
Lopetussivu: 128
Sivujen määrä: 6
ISSN: 1090-7807
DOI: https://doi.org/10.1006/jmre.1998.1446
Tiivistelmä
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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