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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/3906

Title: STABILITY OF HELIUM-FILLED PLATELETS IN NICKEL
Authors: D'OLIESLAEGER, Marc
KNUYT, Gilbert
DE SCHEPPER, Luc
STALS, Lambert
Issue Date: 1991
Publisher: TAYLOR & FRANCIS LTD
Citation: PHILOSOPHICAL MAGAZINE B-PHYSICS OF CONDENSED MATTER STATISTICAL MECHANICS ELECTRONIC OPTICAL AND MAGNETIC PROPERTIES, 63(6). p. 1321-1334
Abstract: In order to explain the observed behaviour of helium platelets, which grow and then collapse into clusters of smaller aggregates, a theoretical model is developed to describe the total energy of a platelet. The model is based partly on the results of atomistic computer simulations. The variation of the total energy gives information regarding the platelet stability and is calculated in both a numerical and an analytical way. It is shown that small platelets are stable and that, once a critical radius is attained, the platelet becomes unstable and a transformation into a group of smaller aggregates takes place. The theoretical model can also explain the fact that two-dimensional helium aggregates are observed to be more stable in b.c.c. than in f.c.c. structures.
Notes: DOLIESLAEGER, M, LIMBURGS UNIV CENTRUM,MAT RES INST,DIV MAT PHYS,UNIV CAMPUS,B-3590 DIEPENBEEK,BELGIUM.
URI: http://hdl.handle.net/1942/3906
ISI #: A1991FV81200010
ISSN: 0141-8637
Type: Journal Contribution
Appears in Collections: Research publications

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