Out of equilibrium plasticity dynamics and the annealing of supersolidity in solid 4He

Debabrata Sinha, Surajit Sengupta, Chandan Dasgupta, Oriol T. Valls

Research output: Contribution to journalArticlepeer-review

Abstract

We present a numerical study of a continuum plasticity field coupled to a Ginzburg-Landau model for superfluidity. The results suggest that a supersolid fraction may appear as a long-lived transient during the time evolution of the plasticity field at higher temperatures where both dislocation climb and glide are allowed. Supersolidity, however, vanishes with annealing. As the temperature is decreased, dislocation climb is arrested and any residual supersolidity due to incomplete annealing remains frozen. Our results may provide a resolution of many perplexing issues concerning a variety of experiments on bulk solid 4He.

Original languageEnglish (US)
Article number295601
JournalJournal of Physics Condensed Matter
Volume25
Issue number29
DOIs
StatePublished - Jul 24 2013

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