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Phys Rev Lett. 2001 Jan 15;86(3):452-5. doi: 10.1103/PhysRevLett.86.452.

Phase transitions of binary alloys with elastic inhomogeneity.

Physical review letters

A Onuki, A Furukawa

Affiliations

  1. Department of Physics, Kyoto University, Kyoto 606-8502, Japan.

PMID: 11177853 DOI: 10.1103/PhysRevLett.86.452

Abstract

In elastically inhomogeneous alloys, in which the shear modulus depends on the composition, coarsening in phase separation can be pinned even without quenched disorder. Here networks in the soft phase enclose the domains in the hard phase. Highly asymmetric strains in the two regions create large free energy barriers that prevent further coarsening. Thus a phase transition occurs between the one-phase and the glassy two-phase states. We numerically obtain the phase diagram and show that this transition is discontinuous at any composition. Therefore there is no critical point.

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