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On the solid- and liquidlike nature of quantum clusters in their ground state


, : On the solid- and liquidlike nature of quantum clusters in their ground state. Journal of Chemical Physics 128(22): 224509-224509

The ground state of pristine clusters of (paraH(2))(N) and (orthoD(2))(N) of size ranging from N=11 to 55 is examined by means of the variational path integral method. The chemical potential is calculated for two different interaction models and it is shown that the location of magic numbers indeed depends on the chosen interaction potential. Density profiles are calculated and reveal the difference between the two isotopes with regards to shell structure. The magnitude of relative pair distance and position fluctuations is used to asses the rigidity of these finite-size quantum systems. A comparison of generic and specific distance fluctuations as a function of cluster size is proposed as a probe of the appearance of rigidity in the clusters. It is found that smaller (paraH(2))(N) clusters are fluidlike and start to display increased rigidity for clusters of size N> or =26, whereas (orthoD(2))(N) clusters of N=13 and N> or =19 are rigid. Small clusters exhibit structures loosely based on an anti-Mackay icosahedral motif. An anti-Mackay to Mackay transition at N=41-42 is suggested.

US$19.90

PMID: 18554031

DOI: 10.1063/1.2938369


Other references

Chatin, J., 1880: Sur la constitution de l'armature buccale chez les Tabanides. The writer briefly describes the structure of the mouth, and shows that the part which has hitherto been regarded as the lingua, is really a pro-longation of the mentum.

Sileva, T.M.; Samoilova, E.M., 1989: Role of mineral amorphous components in the origin of compact soils. The fine fractions of compact soils of Transcaucasia, whether composed of elementary soil particles or microaggregates, contain a large amount of amorphous compounds of aluminium and silicon that can swell and shrink. These compounds act as '...

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Hunter Kenneth E.; Whitaker John Carroll, 1956: Nuclear magnetometer reveals structural grain with aerial mapping. Oil and Gas Journal 54(66): 144-145

Rembold, C.M., 1998: Number needed to screen: development of a statistic for disease screening. Objectives: To develop the number needed to screen, a new statistic to overcome inappropriate national strategies for disease screening. Number needed to screen is defined as the number of people that need to be screened for a given duration to pr...

du Toit, P.L.; van Kradenburg, J.; Niehaus, D.; Stein, D.J., 2001: Comparison of obsessive-compulsive disorder patients with and without comorbid putative obsessive-compulsive spectrum disorders using a structured clinical interview. Increasing attention has been paid to the possibility that a range of disorders, the putative obsessive-compulsive spectrum disorders (OCSDs), may share overlapping phenomenological and neurobiological features with obsessive-compulsive disorder (...

Pritchard, M.A., 1980: Communications: a concept of continuing care. Nursing Times 76(4): 169-172

Slusher, M.A.; Roberts, S., 1957: Fate of adrenal ascorbic acid: relationship to corticosteroid secretion. Ascorbic acid was measured by a micro-form of the method of Roe and Kuether, in the removed right adrenal gland and in blood obtained by cannula from the left adrenal vein 15, 30, 45 and 60 min. later, of adult male Sprague Dawley rats, or hypophy...