Superfluid Response in OCS(H2)5 and OCS(D2)5 |
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| Authors: | Yongkyung Kwona K Birgitta Whaleyb |
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| Affiliation: | (1) Department of Physics and Research Center for Organic Display, Konkuk University, Seoul, 143-701, Korea;(2) Department of Chemistry and Pitzer Center for Theoretical Chemistry, University of California, Berkeley, CA 94720, USA |
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| Abstract: | We analyze the structure and exchange permutation properties of complexes of a linear OCS molecule with molecular para-hydrogen, OCS(H2)5, and with ortho-deuterium, OCS(D2)5, using path integral calculations over a range of temperatures. These show that the H2 (D2) molecules constitute a single ring of localized density around the axis of the OCS molecule that has complete superfluid response to rotations around the molecular axis below ∼ 1 (0.6) K. This unusual combination of properties is shown to account for anomalies in recent spectroscopic measurements of these complexes.PACS numbers: 36.40.−c, 36.40.Ei, 61.46.+w, 67.90.+z |
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