Pressure-induced ferroelastic phase transition in Pb 3 ( P O</…
1979; American Physical Society; Volume: 19; Issue: 7 Linguagem: Inglês
10.1103/physrevb.19.3552
ISSN1095-3795
AutoresD. L. Decker, Søren D. Petersen, D. Debray, Marc Lambert,
Tópico(s)Photorefractive and Nonlinear Optics
ResumoA ferroelastic phase change is observed in P${\mathrm{b}}_{3}$${(\mathrm{P}{\mathrm{O}}_{4})}_{2}$ near 20 kbar at ambient temperature by neutron diffraction. The rhombohedral $\ensuremath{\beta}$ phase above the transition pressure shows a domain-size broadening similar to that observed in the $\ensuremath{\beta}$ phase at atmospheric pressure above 180\ifmmode^\circ\else\textdegree\fi{}C.
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