Decay of the anomalous state of a 4He crystal

Abstract

The relaxation of the anomalous state, i.e., the return of the growth kinetics to the regime typical of crystals in the normal state, is studied experimentally in the temperature range 0.48–0.68 K. It is found that the relaxation process with the growth rate decreasing by two orders of magnitude mainly occurs 1–20 ms after the termination of the fast growth stage. Slow relaxation to the normal values of the kinetic growth coefficient is observed subsequently during a time interval equal approximately to 100 ms.