Superfluid Response in OCS(H2)5 and OCS(D2)5

Authors: Kwona, Yongkyung1; Whaleyb, K. Birgitta2

Source: Journal of Low Temperature Physics, Volume 140, Numbers 3-4, August 2005 , pp. 227-240(14)

Publisher: Springer

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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 sim 1 (0.6) K. This unusual combination of properties is shown to account for anomalies in recent spectroscopic measurements of these complexes.

Document Type: Research article

DOI: 10.1007/s10909-005-6310-0

Affiliations: 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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