Abstract
Using path integral Monte Carlo simulations we calculate exchange frequencies in bulk hcp as atoms undergo ring exchange. We fit the frequencies to a lattice model and examine whether such atoms could become a supersolid, that is, have a nonclassical rotational inertia. We find that the scaling with respect to the number of exchanging atoms is such that superfluid behavior will not be observed in a perfect crystal.
- Received 15 September 2004
DOI:https://doi.org/10.1103/PhysRevLett.93.155303
©2004 American Physical Society