Structure, rotational dynamics, and superfluidity of small OCS-doped He clusters

Abstract

The structural and dynamical properties of OCS molecules solvated in Helium clusters are studied using reptation quantum Monte Carlo, for cluster sizes n=3-20 He atoms. Computer simulations allow us to establish a relation between the rotational spectrum of the solvated molecule and the structure of the He solvent, and of both with the onset of superfluidity. Our results agree with a recent spectroscopic study of this system, and provide a more complex and detailed microscopic picture of this system than inferred from experiments.

4 pages. TeX (requires revtex4) + 3 ps figures (1 color)

References in corpus (2)

• Helium nanodroplet isolation ro-vibrational spectroscopy: methods and recent results
• Transition from molecular complex to quantum solvation in OCS(He)_N

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