Vibrational spectrum of the endohedral Y2C2@C-92 fullerene by Raman spectroscopy: Evidence for tunneling of the diatomic C-2 molecule

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dc.contributorVirginia Techen
dc.contributor.authorBurke, Brian G.en
dc.contributor.authorChan, Jacken
dc.contributor.authorWilliams, Keith A.en
dc.contributor.authorFuhrer, Timothyen
dc.contributor.authorFu, Wujun J.en
dc.contributor.authorDorn, Harry C.en
dc.contributor.authorPuretzky, Alexander A.en
dc.contributor.authorGeohegan, David B.en
dc.contributor.departmentChemistryen
dc.date.accessed2014-04-23en
dc.date.accessioned2014-05-07T15:37:10Zen
dc.date.available2014-05-07T15:37:10Zen
dc.date.issued2011-03en
dc.description.abstractThe 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.en
dc.description.sponsorshipNational Science Foundation CHE-0443850, DMR-0507083en
dc.description.sponsorshipNational Institutes of Health 1R01-CA119371-01en
dc.description.sponsorshipScientific User Facilities Division, Office of Basic Energy Sciences, US Department of Energyen
dc.identifier.citationBurke, B. G.; Chan, J.; Williams, K. A.; Fuhrer, T.; Fu, W. J.; Dorn, H. C.; Puretzky, A. A.; Geohegan, D. B., "Vibrational spectrum of the endohedral Y2C2@C-92 fullerene by Raman spectroscopy: Evidence for tunneling of the diatomic C-2 molecule," Phys. Rev. B 83, 115457 DOI: http://dx.doi.org/10.1103/PhysRevB.83.115457en
dc.identifier.doihttps://doi.org/10.1103/PhysRevB.83.115457en
dc.identifier.issn1098-0121en
dc.identifier.urihttp://hdl.handle.net/10919/47909en
dc.identifier.urlhttp://journals.aps.org/prb/abstract/10.1103/PhysRevB.83.115457en
dc.language.isoen_USen
dc.publisherAmerican Physical Societyen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectimaging contrast agenten
dc.subjectwater-soluble metallofullerenesen
dc.subjectcageen
dc.subjectsingleen
dc.subjectfamilyen
dc.subjectphysics, condensed matteren
dc.titleVibrational spectrum of the endohedral Y2C2@C-92 fullerene by Raman spectroscopy: Evidence for tunneling of the diatomic C-2 moleculeen
dc.title.serialPhysical Review Ben
dc.typeArticle - Refereeden

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