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Vacancy as a Phonon Field Perturbation. I. Lattice Distorsion Around a Vacancy
Author(s) -
Gallina V.,
Omini M.
Publication year - 1964
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.19640060210
Subject(s) - vacancy defect , bravais lattice , phonon , condensed matter physics , perturbation theory (quantum mechanics) , physics , lattice (music) , quantum mechanics , chemistry , crystal structure , crystallography , acoustics
The second quantization of the phonon field allows a theory to be developed which gives the reticular centre displacements, produced by vacancy formation. The theory is based on Bravais lattices, and a detailed calculation is carried out for the Debye approximation. Numerical results for argon at 80 °K are compared with those of previous theories.