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- W2226058523 abstract "5 , where the indices (L) and (m) refer to the laboratory and PAS coordinate system, respectively, and the four first terms of Abragam's formula /2/ are used for the dipole-dipole interaction hamiltonian, H~ 5 . We assume.H~ 5 to be a small perturbation and take it into account in the first approximation only when calculating the resonance frequencies of I spin spectral lines. Due to mechanical rotation of the sample wr the eigenfunctions and the eigenvalues of the un perturbed problem are time dependent. Indeed, in the case of n = 0, we get for the energy levels of .the s nucleus ' ~(t) = w~En(t), where En(t) = -2(k2 + }> 112 cos~ , n = 0, 1, 2, (1) 1; = cos-1(k{k 2 - f d 2 + -})!(k2 + }> 3/ 2 ) , d = cos e cos S -sin e sin S sin (wrt -a). Here, k is the ratio of the quadrupole and Zeeman energies, k = w0!w~ , e is the angle between the rotation axis and the magnetic field, and a, e. yare the EUler angles between sample fixed coordinate system (z~axis of which coincides with rotation axis) and PAS. Assuming rllz-axis in PAS the deviations, t.~ , of the I spin spectral lines from the unperturbed value w~ due to H~ 5 are" @default.
- W2226058523 created "2016-06-24" @default.
- W2226058523 creator A5031390317 @default.
- W2226058523 date "1979-01-01" @default.
- W2226058523 modified "2023-09-27" @default.
- W2226058523 title "LINE SPUTTINGS THROUGH DIPOLE~DIPOLE INTERACTION WITH QUADRUPOLE NUCLEI IN HIGH RESOLUTION NMR" @default.
- W2226058523 cites W3004024615 @default.
- W2226058523 hasPublicationYear "1979" @default.
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