@article{oai:kanazawa-u.repo.nii.ac.jp:00010148, author = {大久保, 嘉高 and 横山, 明彦 and Ohkubo, Yoshitaka and Murakami, Yukihiro and Saito, Tadashi and Yokoyama, Akihiko and Uehara, Shinichi and Shibata, Seiichi and Kawase, Yoichi}, issue = {17}, journal = {Physical review B}, month = {Nov}, note = {The temperature dependences of the nuclear-electric-quadrupole frequency vQ of 117In doped in LiTaO3 (TC5938 K) and Li12xInx/3TaO3 with x50.2 (TC5818 K) show that the order-disorder of the Li ions is not the driving mechanism for the ferroelectric instability in LiNbO3 and LiTaO3 systems, and imply that the oxygen order-disorder is the driving mechanism. The significantly different temperature dependences of vQ of 111Cd in these materials compared, to those of 117In, demonstrate that this order-disorder is of dynamic character., 金沢大学理学部}, pages = {11963--11970}, title = {Different Crystal Chemistries of the 117Cd→117In and 111mCd→111Cd Probes in LiNbO3 and LiTaO3 Studied by the Time-Differential Perturbed-Angular-Correlation Technique}, volume = {60}, year = {1999} }