Observation of a Jump Like Transition from Fast to Normal Kinetics of Facets for Free Growing Helium Crystals
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The growth kinetics is studied of free-growing helium crystals within the temperature range 0.5-0.83 K and supersaturations to 10 mbar. For the pressure supersaturations above 0.5 mbar, numerous drastic changes are observed in the growth kinetics for all crystalline facets from the normal and slow kinetics to the anomalously high or burst-like one. It is found for the first time that the anomalous to normal transition in the facet growth kinetics occurs in a jump like manner within a time 80 {\mu}s interval of the measurement record.
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