Spiral growth of c-facets in 4He crystals at mK-temperatures

Pertti Hakonen*, Alexander Parshin, Jussi Ruutu, Alexei Babkin, Jari Penttilä, Jari Saramäki, George Tvalashvili

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

Abstract

We have made detailed investigations on spiral growth of c-facets in helium crystals with dislocation densities ~ 10 cm-2. Our results at high temperatures T = 100 - 200 mK agree quite well with the classical parabolic power law for spiral growth, whereas a linear dependence on the driving pressure is observed at 2 - 20 mK. This is a consequence of the inertia of elementary steps in the situation when damping due to phonons is small. At high velocities, all our data display a tendency to saturation which is interpreted as an indication of step localization at large driving forces.

Original languageEnglish
Pages (from-to)469-470
Number of pages2
JournalCzechoslovak Journal of Physics
Volume46
Issue numberSUPPL. 1
DOIs
Publication statusPublished - 1996
MoE publication typeA1 Journal article-refereed

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