Dislocation drag from phonon wind in an isotropic crystal at large velocities

28 Jun 2019Daniel N. BlaschkeEmil MottolaDean L. Preston

The anharmonic interaction and scattering of phonons by a moving dislocation, the photon wind, imparts a drag force $v B(v, T, \rho)$ on the dislocation. In early studies the drag coefficient $B$ was computed and experimentally determined only for dislocation velocities $v$ much less than transverse sound speed, $c_t$... (read more)

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