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

Sinha, Debabrata and Sengupta, Surajit and Dasgupta, Chandan and Valls, Oriol T (2013) Out of equilibrium plasticity dynamics and the annealing of supersolidity in solid He-4. In: JOURNAL OF PHYSICS-CONDENSED MATTER, 25 (29).

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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 He-4.

Item Type:	Journal Article
Publication:	JOURNAL OF PHYSICS-CONDENSED MATTER
Publisher:	IOP PUBLISHING LTD
Additional Information:	Copyright for this article belongs to IOP PUBLISHING LTD, ENGLAND.
Department/Centre:	Division of Physical & Mathematical Sciences > Physics
Date Deposited:	03 Sep 2013 11:40
Last Modified:	03 Sep 2013 11:41
URI:	http://eprints.iisc.ac.in/id/eprint/47037

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