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Diffusion Monte Carlo description of Cs2(3Σ u)-(4He)N clusters: An example of weak dopant-helium interaction

AuthorsLópez Durán, David; Pérez de Tudela, Ricardo ; Rodríguez-Cantano, Rocío ; González-Lezana, Tomás ; Lara Castells, María Pilar de ; Delgado Barrio, Gerardo ; Villarreal, Pablo
Issue Date2011
PublisherRoyal Swedish Academy of Sciences
CitationPhysica Scripta 84: 028107 (2011)
AbstractIn this paper, we study the energy and geometric properties of Cs 2(3Σu)-(4He)N clusters, 2≤N≤20, N even, through a diffusion Monte Carlo methodology. Considering the results for doped clusters in which the He-impurity interaction dominates over the He-He one, our aim is to investigate the case when this assumption is not fulfilled anymore and the helium-helium potential becomes dominant. We find a scenario where a pure helium subcomplex is formed, leaving out the alkaline dimer, with the largest species gathering the helium atoms in a two-shell-like structure, the first of which is filled with ten particles. Our results are in agreement with previous theoretical and experimental findings. © 2011 The Royal Swedish Academy of Sciences.
Identifiersdoi: 10.1088/0031-8949/84/02/028107
issn: 0031-8949
Appears in Collections:(CFMAC-IFF) Artículos
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