@article{oai:tsukuba.repo.nii.ac.jp:00033926, author = {Helal, M.A. and 森, 龍也 and MORI, Tatsuya and 小島, 誠治 and KOJIMA, Seiji}, issue = {18}, journal = {Applied Physics Letters}, month = {May}, title = {Softening of infrared-active mode of perovskite BaZrO3 proved by terahertz time-domain spectroscopy}, volume = {106}, year = {2015}, yomi = {モリ, タツヤ and コジマ, セイジ} }