Longitudinal field repolarization studies of reorientational dynamics in the fullerenes C60 and C70 |
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| Authors: | R.M. Macrae R. Kadono F.L. Pratt K. Tanigaki K. Nishiyama K. Nagamine |
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| Affiliation: | (1) Muon Science Laboratory, The Institute of Physical and Chemical Research (RIKEN), 2‐1 Hirosawa, Wako‐shi, Saitama 351‐01, Japan;(2) Muon Science Laboratory, RIKEN (RAL Branch), Rutherford Appleton Laboratory, Chilton, Didcot, Oxon, OX10 0QX, UK;(3) Department of Physics, University of Oxford, The Clarendon Laboratory, Parks Road, Oxford, OX1 3PU, UK;(4) Fundamental Research Laboratories, NEC Corporation, 34 Miyukigaoka, Tsukuba 305, Japan;(5) Meson Science Laboratory, Faculty of Science, University of Tokyo, 7‐3‐1 Hongo, Bunkyo‐ku, Tokyo 113, Japan |
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| Abstract: | LFμSR studies on the pure fullerenes C60 and C70 show temperature dependent features associated with the reorientational behaviour of the fullerenyl radicals MuC60 and MuC70 in the crystalline host substrate. If not excluded from the experimental setup, molecular oxygen undergoes spin exchange reactions with the radicals. The data for C60 correspond to a situation effectively static at 150 K and fully averaged to isotropy at 300 K, while for C70 the data conspicuously do not conform to the predictions of the pseudostatic model employed in ALC‐μSR studies. This revised version was published online in August 2006 with corrections to the Cover Date. |
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