DOMAIN FORMATION IN THE ORDER-DISORDER PHASE-TRANSITION OF RBSCN

Citation
O. Blaschko et al., DOMAIN FORMATION IN THE ORDER-DISORDER PHASE-TRANSITION OF RBSCN, Journal of physics. Condensed matter, 6(19), 1994, pp. 3469-3478
Citations number
10
Categorie Soggetti
Physics, Condensed Matter
ISSN journal
09538984
Volume
6
Issue
19
Year of publication
1994
Pages
3469 - 3478
Database
ISI
SICI code
0953-8984(1994)6:19<3469:DFITOP>2.0.ZU;2-B
Abstract
The order-disorder phase transition in RbSCN connected with a head-tai l reorientation of the linear SCN molecule is investigated by diffuse neutron scattering techniques. The experiment corroborates earlier fin dings in the isostructural compound KSCN showing that disordering occu rs by the increased formation of antiphase domain boundaries whereas w ithin the bulk of the domains the SCN molecules remain locally in an o rdered configuration even at temperatures near the melting point. A co mparison with KSCN indicates that the strong asymmetry of the critical behaviour with respect to T(c) is caused by the influence of elastic interactions on the domain morphology.