Citation
C. Zeng et Pl. Leath, Energetics of disorder-induced dislocations, PHYSICA C, 332(1-4), 2000, pp. 131-134
Citations number
15
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA C
ISSN journal
09214534
→ ACNP
Volume
332
Issue
1-4
Year of publication
2000
Pages
131 - 134
Database
ISI
SICI code
0921-4534(200005)332:1-4<131:EODD>2.0.ZU;2-Q
Abstract
A randomly pinned elastic medium in two dimensions is modeled by a disorder
ed fully packed loop (FPL) model. The energetics of disorder-induced disloc
ations is studied using exact and polynomial algorithms from combinatorial
optimization. Dislocations are found to become unbound at large scale, and
the elastic phase is, thus, unstable giving evidence for the absence of a B
ragg glass in two dimensions. (C) 2000 Elsevier Science B.V. All rights res
erved.