Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Mori T. and Goshima S. and Iwamoto K. and Matsumoto H. and Toyota N. and Suekuni K. and Avila Marcos A. and Takabatake T.,22pWF-3 Optical Conductivity and Rattling Phonons in Clathrate Compounds I : β-Ba_8Ga_<16>Sn_<30>,Meeting Abstracts of the Physical Society of Japan,2189-0803,The Physical Society of Japan,2008,63.2.4,0,778,https://cir.nii.ac.jp/crid/1390282680994431360,https://doi.org/10.11316/jpsgaiyo.63.2.4.0_778_4