Theoretical evidence for a reentrant phase diagram in {\em ortho-para} mixtures of solid H$_2$
| dc.creator | Hetenyi, Balazs | |
| dc.creator | Scandolo, Sandro | |
| dc.creator | Tosatti, Erio | |
| dc.date | 2005-03-02 | |
| dc.date.accessioned | 2026-07-07T09:34:03Z | |
| dc.date.available | 2026-07-07T09:34:03Z | |
| dc.description | We develop a multi order parameter mean-field formalism for systems of coupled quantum rotors. The scheme is developed to account for systems where {\it ortho-para} distinction is valid. We apply our formalism to solid H$_2$ and D$_2$. We find an anomalous {\it reentrant} orientational phase transition for both systems at thermal equilibrium. The correlation functions of the order parameter indicate short-range order at low temperatures. As temperature is increased the correlation increases along the phase boundary. We also find that even extremely small {\it odd-J} concentrations (1%) can trigger short-range orientational ordering. | |
| dc.description | 4 pages, 5 figures, to appear in Physical Review Letters | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0503043 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0503043 | |
| dc.identifier | Phys. Rev. Lett. 94 125503 (2005) | |
| dc.identifier | doi:10.1103/PhysRevLett.94.125503 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/159350 | |
| dc.subject | Statistical Mechanics | |
| dc.subject | Materials Science | |
| dc.title | Theoretical evidence for a reentrant phase diagram in {\em ortho-para} mixtures of solid H$_2$ | |
| dc.type | text |