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VOLUME 32 | ISSUE 10 | PAGE 579
Multicritical point of a two-dimensional incommensurable crystal
The melting of a soliton superstructure of an adfilm near the commensurability point is investigated. It is shown that the bulk modulus of a soliton lattice vanishes at this point. A mechanism for formation of dislocations is determined. A phase diagram, in which the commensurability point is a multicritical point, is obtained.




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