Fourth Moment Correction to the Spectral Density Responsible for the Longitudinal Nuclear Relaxation in Solid H_2

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概要

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• The spectral density responsible for the longitudinal nuclear relaxation time, T_1, in solid H_2 is studied at the high temperature limit of the rigid lattice, by taking the fourth moment into account. The relevant moments are evaluated simply by a systematic procedure based on the algebra of tensors, assuming the orientation dependent energy to be exclusively the electric quadrupole-quadrupole interaction. At high o-H_2 concentration, the high temperature limit of T_1 predicted by the present study is shorter than that by Gaussian approximation by about 10%, in agreement with the recent measurement by Amstutz et al., if one chooses the coupling constant of the quadrupole-quadrupole interaction to be consistent with other kinds of measurements.

• 理論物理学刊行会の論文
• 1970-08-25

著者

• Nakamura Tuto

  Faculty Of Engineering Science Osaka University

• Hama Juichiro

  Faculty Of Engineering Science Osaka University

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