Landau theory of coherent interphase interfaces.
Landau theory of coherent interphase interfaces.
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DOI:
10.1103/physrevb.38.12031
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发表时间:
1988-12
期刊:
影响因子:
--
通讯作者:
Rottman
中科院分区:
文献类型:
--
作者:
Rottman
Landau theory is used to study a (flat) coherent interface between two distinct phases. The average lattice parameter along the interface plane is constrained to be fixed, while the lattice parameter perpendicular to the plane may vary. When (long-range) stress is present in (at least) one of the two bulk phases, the interface free energy $\ensuremath{\sigma}$ and stress ${f}_{\mathrm{ij}}$ are no longer convention-independent quantities, in general. Using a particular convention (analogous to a Gibbs dividing surface), $\ensuremath{\sigma}$, ${f}_{\mathrm{ij}}$, and the interface profile are calculated.