Strained tetragonal states and Bain paths in metals
arXiv:mtrl-th/9609008 · doi:10.1103/PhysRevLett.78.3892
Abstract
Paths of tetragonal states between two phases of a material, such as bcc and fcc, are called Bain paths. Two simple Bain paths can be defined in terms of special imposed stresses, one of which applies directly to strained epitaxial films. Each path goes far into the range of nonlinear elasticity and reaches a range of structural parameters in which the structure is inherently unstable. In this paper we identify and analyze the general properties of these paths by density functional theory. Special examples include vanadium, cobalt and copper, and the epitaxial path is used to identify an epitaxial film as related uniquely to a bulk phase.
RevTeX, 4 pages, 4 figures, submitted to Phys. Rev. Lett
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