J. Phys. Colloques
Volume 46, Number C10, Décembre 1985Eighth International Conference on Internal Friction and Ultrasonic Attenuation in Solids
|Page(s)||C10-163 - C10-166|
J. Phys. Colloques 46 (1985) C10-163-C10-166
ULTRASONIC ATTENUATION FROM DISLOCATIONS IN A MAGNETIC FIELDR. JEMIELNIAK and J. KRÓLIKOWSKI
Institute of Fundamental Technological Research, Polish Academy of Sciencies, Swietokrzyska 21, 00-049 Warszawa, Poland
The attenuation of longitudinal ultrasonic waves has been measured in high purity Cu monocrystal in a magnetic field at the liquid helium temperature. The magnetic field dependence of dislocation damping has been observed. The dislocation damping force factor B has been evaluated by employing Granato-Lücke theory. The obtained results show that the magnetic field effected on dislocation drag force.