Tunneling of dislocation kinks in aluminum
Melik-Shakhnazarov V. A., Mirzoeva I.I., Naskidashvili I. A.
A velocity dispersion of low-frequency sound (— 1 kHz), due to a coherent tunneling diffusion of dislocation kinks, has been discovered in deformed 99.9998%-pure aluminum at Г~30 К.