Second-order inner displacement in the hexagonal close-packed structure |
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Authors: | CSG Cousins |
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Institution: | Department of Physics, University of Exeter, Exeter, Devon, UK |
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Abstract: | Expressions given recently by Ramanand et al. for second-order sublattice displacements in the hexagonal close-packed structure are shown to be in error. The use of inner elasticity theory leads to expressions that conform fully to the requirements of thermodynamics and crystal symmetry. |
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