Ferroelastic phase transition, domain pattern and metastability in diluted lead phosphate-type crystals

Structural study of the intermediate phase of the ferroelasticPb3(PO4Cho1, Lee2, Park3 et al. 2002Phys. Rev. B132160View full textAdd to dashboardCite

“…8,9 And Salje and co-workers suggested that the low-temperature monoclinic phase of Pb 3 (PO 4 ) 2 coexists with a hightemperature rhombohedral phase between 180 and 300°C. [10][11][12] And they had studied the critical exponents of specific heat for pure Pb 3 (PO 4 ) 2 and the isostructural mixed crystals Pb 3 (P 1Ϫx As x O 4 ) 2 . 10 In their result, they have reported not only the pure crystal but also shows the anomaly near 257°C, from a slight change in the slope of the specific heat (C p ).…”

Twin walls and hierarchical mesoscopic structures

“…MINERALS which undergo phase transformations are likely to show microstructures with twin structures as a typical ngerprint for ferroelastic behaviour (Salje, 1993;Bismayer et al, 1994Bismayer et al, , 2000Bosbach et al, 1997;Roewer et al, 1997). The interaction between twin walls leads to the formation of corner domains, needle domains and comb patterns.…”