Displacement field and elastic constants in nonideal crystals
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Physical review B. 2010, 81(13), 134110. Available under: doi: 10.1103/PhysRevB.81.134110
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In this work a periodic crystal with point defects is described in the framework of linear-response theory for broken-symmetry states using correlation functions and Zwanzig-Mori equations. The main results are microscopic expressions for the elastic constants and for the coarse-grained density, point-defect density, and displacement field, which are valid in real crystals, where vacancies and interstitials are present. The coarse-grained density field differs from the small wave-vector limit of the microscopic density. In the long-wavelength limit, we recover the phenomenological description of elasticity theory including the defect density.
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WALZ, Christof, Matthias FUCHS, 2010. Displacement field and elastic constants in nonideal crystals. In: Physical review B. 2010, 81(13), 134110. Available under: doi: 10.1103/PhysRevB.81.134110BibTex
@article{Walz2010Displ-4794, year={2010}, doi={10.1103/PhysRevB.81.134110}, title={Displacement field and elastic constants in nonideal crystals}, number={13}, volume={81}, journal={Physical review B}, author={Walz, Christof and Fuchs, Matthias}, note={Article Number: 134110} }
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