{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2023,8,1]],"date-time":"2023-08-01T08:53:03Z","timestamp":1690879983177},"reference-count":21,"publisher":"AIP Publishing","issue":"5","content-domain":{"domain":["pubs.aip.org"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2001,5,1]]},"abstract":"<jats:p>Based on a simple model for the ordering of hexagons on a square planar lattice, an attempt is made to consider the possible structure of C60 fullerite in its low-temperature phase. It is shown that hexagons representing fullerenes oriented along the C3 axes of the sc lattice can be ordered into an ideal structure with four nonequivalent molecules in the unit cell. Then the energy degeneracy for the rotation of each hexagon by \u03c0\/3 around its C3 axis leaves the translational and orientational order in this structure but leads to a random distribution of \u03c0\/3 rotations and hence to an \u201caveraged\u201d unit cell with two molecules. However, the most relevant structural defects are not these intrinsic \u201cmisorientations\u201d but some walls between domains with different sequences of the above-mentioned two (nonideal) sublattices. Numerical estimates are made for the anisotropic intermolecular potential, showing that the anisotropy is noticeably smaller for molecules in walls than in domains.<\/jats:p>","DOI":"10.1063\/1.1374727","type":"journal-article","created":{"date-parts":[[2002,7,26]],"date-time":"2002-07-26T14:17:48Z","timestamp":1027693068000},"page":"397-403","update-policy":"http:\/\/dx.doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":13,"title":["Low-temperature orientational ordering and possible domain structures in C60 fullerite"],"prefix":"10.1063","volume":"27","author":[{"given":"V. M.","family":"Loktev","sequence":"first","affiliation":[{"name":"Bogolyubov Institute for Theoretical Physics of the National Academy of Sciences of Ukraine, 14b, Metrologichna Str., Kiev 143, 03143\u2009Ukraine"},{"name":"Centro de F\u0131\u0301sica do Porto, Universidade do Porto, Rua do Campo Alegre 687, 4169-007\u2009Porto, Portugal"}]},{"given":"Y. G.","family":"Pogorelov","sequence":"additional","affiliation":[{"name":"Centro de F\u0131\u0301sica do Porto, Universidade do Porto, Rua do Campo Alegre 687, 4169-007\u2009Porto, Portugal"}]},{"given":"J. N.","family":"Khalack","sequence":"additional","affiliation":[{"name":"Bogolyubov Institute for Theoretical Physics of the National Academy of Sciences of Ukraine, 14b, Metrologichna Str., Kiev 143, 03143\u2009Ukraine"}]}],"member":"317","reference":[{"key":"2023062821065086200_r1","doi-asserted-by":"crossref","first-page":"575","DOI":"10.1103\/RevModPhys.69.575","volume":"69","year":"1997","journal-title":"Rev. Mod. Phys."},{"key":"2023062821065086200_r2"},{"key":"2023062821065086200_r3","doi-asserted-by":"crossref","first-page":"687","DOI":"10.1134\/1.567407","volume":"65","year":"1997","journal-title":"JETP Lett."},{"key":"2023062821065086200_r4","doi-asserted-by":"crossref","first-page":"943","DOI":"10.1063\/1.593498","volume":"23","year":"1997","journal-title":"Low Temp. 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