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dc.creatorBree, Alanen_US
dc.creatorTaliani, Carloen_US
dc.creatorEdelson, Martinen_US
dc.date.accessioned2006-06-15T14:06:54Z
dc.date.available2006-06-15T14:06:54Z
dc.date.issued1978en_US
dc.identifier1978-TD-03en_US
dc.identifier.urihttp://hdl.handle.net/1811/10608
dc.descriptionAuthor Institution: Department of Chemistry, University of British Columbia; Laboratorio Spettroscopia, Molecolare del CNR, 40126 Bologna, Italy; Ames Laboratory, Iowa State Universityen_US
dc.description.abstractPhase transitions have been detected in biphenyl at about $42^{\circ}\, K$ and $17^{\circ}\, K$ by noting changes in the transmitted light intensity when the crystal is placed, at extinction, between crossed polarizers and the crystal temperature slowly varied. The phase transition at $42^{\circ}\, K$ is gradual (i.e. it occurs over 3 range of temperature) while the $17^{\circ}\, K$ transition is abrupt. The effect is observed only for light propagating normal to an $a^{*} b$ section which implies that the atomic displacements at the phase transitions are largely restricted to this plane. An analogous behavior is observed for bipheny $1-d_{10}$ except that the onset of the gradual transition on cooling is $38^{\circ}\, K$ and the abrupt transition is at $24^{\circ}\,K$. Further evidence for the $17^{\circ}\, K$ phase transition has been obtained through a study of the temperature variation of the two-photon absorption origin linewidth.en_US
dc.format.extent121799 bytes
dc.format.mimetypeimage/jpeg
dc.language.isoEnglishen_US
dc.publisherOhio State Universityen_US
dc.titleLOW TEMPERATURE PHASE TRANSITIONS IN BIPHENYLen_US
dc.typearticleen_US


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