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Time-dependent quadrupole interactions for |
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| Authors: | W. Sato H. Ueno A. Taniguchi Y. Itsuki Y. Kasamatsu A. Shinohara K. Asahi Y. Ohkubo |
| Affiliation: | (1) Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan;(2) Applied Nuclear Physics Laboratory, RIKEN, Wako, Saitama 351-0198, Japan;(3) Research Reactor Institute, Kyoto University, Kumatori, Osaka 590-0494, Japan;(4) Department of Physics, Tokyo Institute of Technology, Meguro, Tokyo 152-8551, Japan |
| Abstract: | The time-differential perturbed angular correlation (TDPAC) method was applied to a study on the behavior of 140Ce atoms implanted in highly oriented pyrolytic graphite (HOPG). Exponential-type gradual attenuation of the directional anisotropy of the relevant γ-ray cascade was observed in the perturbation patterns. From temperature dependence of the relaxation rate, a thermally activated dynamic motion of the probe atoms was suggested. |
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