On the possible "supersolid" character of parahydrogen clusters

Details On the possible "supersolid" character of parahydrogen clusters On the possible "supersolid" character of parahydrogen clusters

2011-01-26

arxiv.org/abs/1101.5054v2

J. Phys. Chem. A 115, 6831 (2011)

Physics

Condensed Matter

Statistical Mechanics

18 pages, 7 figures

Scientific paper

We present results of a theoretical study of structural and superfluid properties of parahydrogen clusters comprising 25, 26 and 27 molecules at low temperature. The microscopic model utilized here is based on the Silvera-Goldman pair potential. Numerical results are obtained by means of Quantum Monte Carlo simulations, making use of the continuous-space Worm Algorithm. The clusters are superfluid in the low temperature limit, but display markedly different physical behaviours. For N=25 and 27, superfluidity at low temperature arises as clusters melt, i.e., become progressively liquid-like as a result of quantum effects. On the other hand, for N = 26 the cluster remains rigid and solid-like. We argue that this cluster can be regarded as a mesoscopic "supersolid". This physical picture is supported by results of simulations in which a single parahydrogen molecule in the cluster is isotopically substituted.

Affiliated with

Also associated with

No associations

Rating

On the possible "supersolid" character of parahydrogen clusters does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with On the possible "supersolid" character of parahydrogen clusters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On the possible "supersolid" character of parahydrogen clusters will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-418935