TY - JOUR
T1 - Spin-Echo Behavior of Nonintegral-Spin Quadrupolar Nuclei in Inorganic Solids
AU - Haase, Jürgen
AU - Oldfield, Eric
PY - 1993
Y1 - 1993
N2 - The response to spin-echo radiofrequency pulse excitation of a variety of nonintegral-spin quadrupolar nuclei (23Na, 27Al, and 93Nb) in inorganic solids (single-crystal ruby and sapphire, α-Al2O3, γ-Al2O3, AlN, NaNO3 KNbO3, NaNbO3, LiNbO3, albite, and the zeolite Linde A), subject to strong quadrupolar interactions and dipolar interactions of varying strength, is reported. It is demonstrated that "soft" RF pulse excitation with a pair of selective π/2 and π pulses yields predictable spin-echo decay behavior as a function of dipolar interaction, the experimental results being in good agreement with the theoretical predictions.
AB - The response to spin-echo radiofrequency pulse excitation of a variety of nonintegral-spin quadrupolar nuclei (23Na, 27Al, and 93Nb) in inorganic solids (single-crystal ruby and sapphire, α-Al2O3, γ-Al2O3, AlN, NaNO3 KNbO3, NaNbO3, LiNbO3, albite, and the zeolite Linde A), subject to strong quadrupolar interactions and dipolar interactions of varying strength, is reported. It is demonstrated that "soft" RF pulse excitation with a pair of selective π/2 and π pulses yields predictable spin-echo decay behavior as a function of dipolar interaction, the experimental results being in good agreement with the theoretical predictions.
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U2 - 10.1006/jmra.1993.1004
DO - 10.1006/jmra.1993.1004
M3 - Article
AN - SCOPUS:0346461738
SN - 1064-1858
VL - 101
SP - 30
EP - 40
JO - Journal of Magnetic Resonance - Series A
JF - Journal of Magnetic Resonance - Series A
IS - 1
ER -