Low Temperature Physics: 30, 247 (2004); https://doi.org/10.1063/1.1645186 (6 pages)
Fizika Nizkikh Temperatur: Volume 30, Number 3 (March 2004), p. 332-339    ( to contents , go back )

Oscillations of the elastic superstructure formed by a screw dislocation lattice

A.M. Kosevich

B.Verkin Institute for Low Temperature Physics and Engineering National Academy of Sciences of Ukraine, 47 Lenin Ave., Kharkov 61103, Ukraine
E-mail: kosevich@ilt.kharkov.ua
pos Анотація:

Received Jule 18, 2003


Equations of small vibrations of a dislocation lattice are proposed on the basis of the model of a lattice which consists of a periodically arranged set of parallel screw dislocations. Stability of the dislocation lattice is discussed. The longwave collective vibrations are described. It is shown that some of the vibrations are similar to plasmon vibrations. A possibility for observation of a resonance frequency in the vibrational spectrum of the system under consideration is pointed out.

61.72.Lk - Linear defects: dislocations, disclinations

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