{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,24]],"date-time":"2026-02-24T17:40:36Z","timestamp":1771954836233,"version":"3.50.1"},"reference-count":45,"publisher":"AIP Publishing","issue":"13","content-domain":{"domain":["pubs.aip.org"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2013,10,7]]},"abstract":"<jats:p>In this contribution, we investigate the low-temperature, low-density behaviour of dipolar hard-sphere (DHS) particles, i.e., hard spheres with dipoles embedded in their centre. We aim at describing the DHS fluid in terms of a network of chains and rings (the fundamental clusters) held together by branching points (defects) of different nature. We first introduce a systematic way of classifying inter-cluster connections according to their topology, and then employ this classification to analyse the geometric and thermodynamic properties of each class of defects, as extracted from state-of-the-art equilibrium Monte Carlo simulations. By computing the average density and energetic cost of each defect class, we find that the relevant contribution to inter-cluster interactions is indeed provided by (rare) three-way junctions and by four-way junctions arising from parallel or anti-parallel locally linear aggregates. All other (numerous) defects are either intra-cluster or associated to low cluster-cluster interaction energies, suggesting that these defects do not play a significant part in the thermodynamic description of the self-assembly processes of dipolar hard spheres.<\/jats:p>","DOI":"10.1063\/1.4821935","type":"journal-article","created":{"date-parts":[[2013,10,2]],"date-time":"2013-10-02T22:39:58Z","timestamp":1380753598000},"update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":38,"title":["Branching points in the low-temperature dipolar hard sphere fluid"],"prefix":"10.1063","volume":"139","author":[{"given":"Lorenzo","family":"Rovigatti","sequence":"first","affiliation":[{"name":"Sapienza Universit\u00e0 di Roma 1 Dipartimento di Fisica, , Piazzale A. Moro 2, 00185 Roma, Italy"}]},{"given":"Sofia","family":"Kantorovich","sequence":"additional","affiliation":[{"name":"Sapienza Universit\u00e0 di Roma 1 Dipartimento di Fisica, , Piazzale A. Moro 2, 00185 Roma, Italy"},{"name":"University of Vienna 2 , Boltzmanstrasse 5, 1090 Wien, Austria"},{"name":"Ural Federal University 3 , Lenin av. 51, 620083, Ekaterinburg, Russia"}]},{"given":"Alexey O.","family":"Ivanov","sequence":"additional","affiliation":[{"name":"Ural Federal University 3 , Lenin av. 51, 620083, Ekaterinburg, Russia"}]},{"given":"Jos\u00e9 Maria","family":"Tavares","sequence":"additional","affiliation":[{"name":"Instituto Superior de Engenharia de Lisboa - ISEL 4 , Rua Conselheiro Em\u00eddio Navarro 1, P-1950-062 Lisbon, Portugal"},{"name":"Centro de F\u00edsica Te\u00f3rica e Computacional 5 , Avenida Professor Gama Pinto 2, P-1649-003 Lisbon, Portugal"}]},{"given":"Francesco","family":"Sciortino","sequence":"additional","affiliation":[{"name":"Sapienza Universit\u00e0 di Roma 1 Dipartimento di Fisica, , Piazzale A. Moro 2, 00185 Roma, Italy"},{"name":"Sapienza Universit\u00e0 di Roma 6 CNR-ISC, , Piazzale A. 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