Interferometric studies of interfaces at milliKelvin temperatures |
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| Authors: | Pertti Hakonen Alexei Babkin Alexander Parshin Jussi Ruutu Jari Saramäki George Tvalashvili |
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| Institution: | 1.Low Temperature Laboratory,Helsinki University of Technology,Espoo,Finland;2.P.L. Kapitza Institute for Physical Problems,Moscow,Russia;3.Institute of Physics,University of Bayreuth,Bayreuth,Germany |
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| Abstract: | A brief review of our recent work on interfaces in quantum systems at millikelvin temperatures is presented. In this paper, we concentrate on high-resolution interferometry on superfluid/solid interface in4He. Our results show a novel surface transition at small inclination angles off the c-axis, slow facet growth which cannot be assigned to the regular screw-dislocation-mediated mechanism, and fast spiral growth moderated by step localization. |
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