1985/09/15 by O. H. Nielsen, Richard M. Martin · 1 voice · 8 citations
Earth and Planetary Sciences · Materials Science · Chemistry · #High-pressure geophysics and materials #Thermal properties of materials #Advanced Physical and Chemical Molecular Interactions
paper · doi:10.1103/physrevb.32.3780
openalex publication_date 1985/09/15 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/25
The stress theorem presented previously by the present authors is derived in detail and is related to the virial and force theorems. Stress fields are considered in two alternative forms, both of which give the same macroscopic stress and forces on nuclei when integrated over appropriate surfaces. A crucial concept is interactions that ``cross'' surfaces. Explicit forms of the stress field within the local-density approximation are given, together with a generalization of the approximate Liberman form for pressure. Reciprocal-space expressions and ab initio calculations are considered in detail in an accompanying paper.