Stress induced dislocation roughening -- phase transition in 1d at finite temperature

Abstract

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 \he4 in a narrow temperature range recently observed by Ray and Hallock (Phys.Rev. Lett. {\bf 105}, 145301 (2010)).

4 revtex pages, 5 figures. Replaced with the published version

References in corpus (4)

• Luttinger Liquid in the Core of Screw Dislocation in Helium-4
• Observation of Unusual Mass Transport in Solid hcp 4He
• Mass flux and solid growth in solid 4He: 60 mK - 700 mK
• Glide and Superclimb of Dislocations in Solid ${}^4$He

Cited by in corpus (6)

• Mass flow through solid 4He induced by the fountain effect
• Dislocation induced anomalous softening of solid helium
• Emergence of Luttinger Liquid behavior of a superclimbing dislocation
• Phases of superclimbing dislocation with long-range interaction between jogs
• BCC vs. HCP - The Effect of Crystal Symmetry on the High Temperature Mobility of Solid ${}^4$He
• The role of Helium-3 impurities in the stress induced roughening of superclimbing dislocations in solid Helium-4