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dc.contributor.authorTorchinsky, Darius H.
dc.contributor.authorJohnson, Jeremiah A.
dc.contributor.authorNelson, Keith Adam
dc.date.accessioned2013-11-22T15:31:30Z
dc.date.available2013-11-22T15:31:30Z
dc.date.issued2012-05
dc.date.submitted2011-06
dc.identifier.issn00219606
dc.identifier.issn1089-7690
dc.identifier.urihttp://hdl.handle.net/1721.1/82543
dc.description.abstractWe have performed depolarized impulsive stimulated scattering experiments to observe shear acoustic phonons in supercooled triphenylphosphite (TPP) from ∼10–500 MHz. These measurements, in tandem with previously performed longitudinal and shear measurements, permit further analyses of the relaxation dynamics of TPP within the framework of the mode coupling theory. Our results provide evidence of α coupling between the shear and longitudinal degrees of freedom up to a decoupling temperature T [subscript c] = 231 K. A lower bound length scale of shear wave propagation in liquids verified the exponent predicted by theory in the vicinity of the decoupling temperature.en_US
dc.description.sponsorshipNational Science Foundation (U.S.) (Grant CHE-0616939)en_US
dc.description.sponsorshipNational Science Foundation (U.S.) (Grant IMR-0414895)en_US
dc.language.isoen_US
dc.publisherAmerican Institute of Physics (AIP)en_US
dc.relation.isversionofhttp://dx.doi.org/10.1063/1.3700756en_US
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.en_US
dc.sourceMIT web domainen_US
dc.titleα-Scale decoupling of the mechanical relaxation and diverging shear wave propagation length scale in triphenylphosphiteen_US
dc.typeArticleen_US
dc.identifier.citationTorchinsky, Darius H.; Johnson, Jeremy A.; Nelson, Keith A. J. Chem. Phys. 136, 174509 (2012). © 2012 American Institute of Physicsen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Chemistryen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Physicsen_US
dc.contributor.mitauthorTorchinsky, Darius H.en_US
dc.contributor.mitauthorJohnson, Jeremiah A.en_US
dc.contributor.mitauthorNelson, Keith Adamen_US
dc.relation.journalThe Journal of Chemical Physicsen_US
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dspace.orderedauthorsTorchinsky, Darius H.; Johnson, Jeremy A.; Nelson, Keith A.en_US
dc.identifier.orcidhttps://orcid.org/0000-0001-7804-5418
dc.identifier.orcidhttps://orcid.org/0000-0001-9157-6491
mit.licensePUBLISHER_POLICYen_US


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