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Condensed Matter > Statistical Mechanics

arXiv:1906.08304 (cond-mat)
[Submitted on 19 Jun 2019]

Title:Consequences of lattice mismatch for phase equilibrium in heterostructured solids

Authors:Layne B. Frechette, Christoph Dellago, Phillip L. Geissler
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Abstract:Lattice mismatch can substantially impact the spatial organization of heterogeneous materials. We examine a simple model for lattice-mismatched solids over a broad range of temperature and composition, revealing both uniform and spatially modulated phases. Scenarios for coexistence among them are unconventional due to the extensive mechanical cost of segregation. Together with an adapted Maxwell construction for elastic phase separation, mean field theory predicts a phase diagram that captures key low-temperature features of Monte Carlo simulations.
Comments: 5 pages, 3 figures (main text); 34 pages, 25 figures (supplemental material)
Subjects: Statistical Mechanics (cond-mat.stat-mech); Materials Science (cond-mat.mtrl-sci); Soft Condensed Matter (cond-mat.soft)
Cite as: arXiv:1906.08304 [cond-mat.stat-mech]
  (or arXiv:1906.08304v1 [cond-mat.stat-mech] for this version)
  https://doi.org/10.48550/arXiv.1906.08304
Journal reference: Phys. Rev. Lett. 123, 135701 (2019)
Related DOI: https://doi.org/10.1103/PhysRevLett.123.135701

Submission history

From: Layne Frechette [view email]
[v1] Wed, 19 Jun 2019 18:56:43 UTC (2,971 KB)
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