Time-differential perturbed angular correlation of 117Cd.RAR.117In and 111mCd.RAR.111Cd in 8-mol% In-doped LiTaO3.
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Accession number;01A0231206
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| Title;Time-differential perturbed angular correlation of 117Cd.RAR.117In and 111mCd.RAR.111Cd in 8-mol% In-doped LiTaO3. |
| Author;
OKUBO YOSHITAKA
(Kyoto Univ., Res. Reactor Inst.)
SAITO TADASHI
(Osaka Univ., Radioisot Res. Center)
YOKOYAMA AKIHIKO
(Osakadai Daigakuinrigakukenkyuka)
UEHARA SHIN'ICHI
(Kyoto Univ., Res. Reactor Inst.)
KAWASE YOICHI
(Kyoto Univ., Res. Reactor Inst.)
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Journal Title;Abstracts of Papers. Symposium on Radiochemistry
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Journal Code:F0139B
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ISSN:1345-2762
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VOL.44th;NO.;PAGE.49(2000)
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| Figure&Table&Reference; |
| Pub. Country;Japan |
| Language;Japanese |
| Abstract;The nuclear-electric-quadrupole interactions at 117In and 111Cd arising from 117Cd and 111mCd, respectively, each chemically introduced in 8-mol% In-doped ferroelectric LiTaO3 (TC=818 K) polycrystals, were studied by measuring the time-differential perturbed angular correlation of gamma rays over a temperature range from 4.2 to 1073 K. Well-defined, essentially single, static electric quadrupole frequencies .OMEGA.Q were observed for 117In and 111Cd in the oxide. There is a significant difference between the temperature dependence of .OMEGA.Q of 117In and that of 111Cd: the former temperature dependence reflects the phase transition at 818 K, whereas the latter does not so. This observation indicates that the Cd ions at the Li sites are in peculiar physicochemical states. (author abst.) |
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