Dislocations and melting in two and three dimensions

Jeffery L. Tallon

Research output: Contribution to journalJournal articleResearchpeer-review

266 Downloads (Pure)


Comments are presented on the recent theories of two-dimensional melting which envisage melting as proceeding via two second-order transitions comprising dislocation dipole dissociation followed by disclination dipole dissociation. It is suggested that if the configurational entropy is properly included, the model system may jump discontinuously from a volume below the dislocation transition to a volume above the disclination transition so that both transitions are virtual and are hidden in the first-order discontinuity. A reinterpretation of the recent molecular-dynamics simulation of two-dimensional melting of Frenkel and McTague, reveals that such is the case for a Lennard-Jones system. There may be no fundamental difference between two-and three-dimensional melting. ©1980 The American Physical Society
Original languageEnglish
JournalPhysical Review B
Issue number1
Pages (from-to)453-455
Publication statusPublished - 1980

Bibliographical note

Copyright (1980) by the American Physical Society.


Dive into the research topics of 'Dislocations and melting in two and three dimensions'. Together they form a unique fingerprint.

Cite this