Melting of hard cubes

Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics

Volumn 58, Issue 4, 1998, Pages 4701-4705

  Jagla, E A ^a  

^a CENTRO ATÓMICO BARILOCHE   (Argentina)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0041605606     PISSN: 1063651X     EISSN: None     Source Type: Journal    
DOI: 10.1103/PhysRevE.58.4701     Document Type: Article

References (28)

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21. In the system of PHCs, molecular-orientational order, i.e., order in the orientation of the individual particles, always exists since all particles are parallel to each other by definition. Bond-orientational order refers to long-range correlations in the orientations of the segments joining the centers of neighbor particles. This is what is tested with the parameter B2 (see the text). I will use simply “orientational order” to refer to “bond-orientational order.”
22. Simulations were also performed by fixing the volume of the system and calculating the equilibrium pressure (and thus T*) along the simulations (the NVT ensemble). The results are completely consistent with the ones presented here.
23. In fact, the simple cubic structure of hard cubes has at low temperatures a shear modulus proportional to T* along the main crystalline directions [E. A. Jagla (unpublished)].
24. Strictly speaking, long-range orientational order alone generates values of Bc that are different from zero. However, these values are much smaller than in the presence of long-range positional order. This justifies the use of Bc as an indicator of long-range positional order.
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