Evidence for the Intramolecular Motion of Gd Atoms in a Gd2@C92Nanopeapod Suenaga, Kazu ; Taniguchi, Risa ; Shimada, Takashi ; Okazaki, Toshiya ; Shinohara, Hisanori ; Iijima, Sumio Abstract Publication: Nano Letters Pub Date: October 2003 DOI: 10.1021/nl034621c Bibcode: 2003NanoL...3.1395S