Abstract
We investigate the properties of liquid 4HeN clusters hosting a quantized vortex pinned to a dopant atom (Ne or Xe) or molecule (SF 6 or HCN). A density functional theory is used to calculate the stationary configurations of pure and doped clusters, with and without vortex, up to N=1000. A liquid drop formula is then proposed that accurately describes the total energy of the complex and allows one to extrapolate the results to larger N values. We find that forming a dopant+vortex+4HeN complex is energetically favored below a critical size N cr , which strongly depends on the type of dopant.
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Pi, M., Mayol, R., Barranco, M. et al. Vortices in Doped 4He Clusters. Journal of Low Temperature Physics 121, 423–428 (2000). https://doi.org/10.1023/A:1017557915143
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DOI: https://doi.org/10.1023/A:1017557915143