Published December 10, 1973 | Version v1
Journal article

Three-body forces in the lattice dynamics of beryllium

  • 1. Istituto di Fisica and Gruppo Nazionale Struttura della Materia, Universita di Modena, Modena, Italy

Description

We present a first-principles calculation of the lattice dynamics of Be. The dynamical matrix is set up by evaluating the total electron energy up to third order in the electron-ion pseudopotential. In this way we are able to describe the three-body forces, which are essential for reproducing the experimental data.

Additional details

Additional titles

Augmented title (English)
Electron--ion pseudopotential

Identifiers

Publishing Information

Journal Title
Physical Review Letters
Journal Volume
31
Journal Issue
24
Series
Phys. Rev. Lett.
Journal Page Range
1466-1469
ISSN
0031-9007

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
5141015
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
BERYLLIUM; DYNAMICAL GROUPS; LATTICE VIBRATIONS; MATRIX ELEMENTS; OPTICAL MODES; PHONONS; THREE-BODY PROBLEM
Descriptors DEC
ALKALINE EARTH METALS; ELEMENTS; MANY-BODY PROBLEM; METALS; QUASI PARTICLES; SYMMETRY GROUPS

Optional Information

Notes
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