Browsing by Author "Fuhrer, Timothy"

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    Vibrational spectrum of the endohedral Y2C2@C-92 fullerene by Raman spectroscopy: Evidence for tunneling of the diatomic C-2 molecule
    Burke, Brian G.; Chan, Jack; Williams, Keith A.; Fuhrer, Timothy; Fu, Wujun J.; Dorn, Harry C.; Puretzky, Alexander A.; Geohegan, David B. (American Physical Society, 2011-03)
    The structure and vibrational spectrum of the novel endohedral fullerene Y2C2@C-92 was studied by Raman spectroscopy, with particular emphasis on the rotational transitions of the diatomic C-2 unit in the low-energy Raman spectrum. We report evidence for tunneling of this unit through the C-2 rotation plane and observe anomalous narrowing in a hindered rotational mode. We also report complementary density functional theory calculations that support our conclusions and discuss potential applications to quantum computing and nonvolatile memory devices.