Growth, twinning and etch figures of ferroelectric/ferroelastic dendritic BiFeO<sub>3</sub>, single domain crystals

Kubel, Frank; Schmid, Hans

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Title		Growth, twinning and etch figures of ferroelectric/ferroelastic dendritic BiFeO₃, single domain crystals
Authors		Kubel, Frank Schmid, Hans
Published in		Journal of Crystal Growth. 1993, vol. 129, no. 3-4, p. 515-524
Abstract		Ferroelec./ferroelastic dendritic single domain crystals of BiFeO3 were grown in the ferroelec. phase in a Bi2O3/B2O3/Fe2O3 flux using a platinum crucible, placed in an evacuated sealed quartz tube. Etching of the crystals shows the non-centrosym. polar character of the crystals. The single domains can be rendered ferroelastically polydomain by heating above the phase transition temp. of 1110 K and subsequent cooling or by mech. twinning using stress components along the spontaneous polarization direction, which represents the longest pseudocubic space diagonal. Mech. detwinning has also been obsd. Etching of the twinned crystals at room temp. showed no 180 Deg ferroelec. domains inside the ferroelastic domains.
Keywords		Ferroelastic substances — Ferroelectric substances — Ferroelectric domain — Crystal growth
Full text		Article (Published version) (2.5 MB) - Limited access to UNIGE
Structures		Faculté des sciences / Section de chimie et biochimie / Département de chimie minérale, analytique et appliquée
Project		FNS: 1992
Citation (ISO format)		KUBEL, Frank, SCHMID, Hans. Growth, twinning and etch figures of ferroelectric/ferroelastic dendritic BiFeO₃, single domain crystals. In: Journal of Crystal Growth, 1993, vol. 129, n° 3-4, p. 515-524. https://archive-ouverte.unige.ch/unige:31369