Stress-induced dislocation roughening: a phase transition in one dimension at finite temperature

We present an example of a generically forbidden phase transition in 1D at finite temperature-stress induced and thermally assisted roughening of a superclimbing dislocation in a Peierls potential. We also argue that such roughening is behind the strong suppression of the superflow through solid (4)...

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Bibliographic Details
Published in:Physical review letters 2011-06, Vol.106 (23), p.235302-235302, Article 235302
Main Authors: Aleinikava, D, Kuklov, A B
Format: Article
Language:English
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Summary:We present an example of a generically forbidden phase transition in 1D at finite temperature-stress induced and thermally assisted roughening of a superclimbing dislocation in a Peierls potential. We also argue that such roughening is behind the strong suppression of the superflow through solid (4)He in a narrow temperature range recently observed by Ray and Hallock [Phys. Rev. Lett. 105, 145301 (2010)].
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.106.235302