Scientific article

Convergent beam electron diffraction study of Pb2CoWO6 at 100 K

Published inPhase transitions, vol. 31, no. 1-4, p. 45-54
Publication date1991

A study by convergent beam electron diffraction was performed to clarify the symmetry of the phase III of Pb2CoWO6. Microdiffractions with higher-order Laue zone on monodomain areas have confirmed the cell proposed in a preceding study. In addn., an axial glide plane (c) is normal to the b-axis. In the conditions of observation, the convergent beam electron diffraction patterns lead to an apparent point group mmm. No breakdown of a mirror symmetry could be found. The discrepancy between this result and the existence of a spontaneous polarization is discussed.

  • Crystal structure
  • Ferroelectricity
  • Structure lead cobalt tungstate ferroelectric
  • Swiss National Science Foundation - 1990
Citation (ISO format)
SCIAU, Philippe Guy Paul, BUFFAT, P. A., SCHMID, Hans. Convergent beam electron diffraction study of Pb<sub>2</sub>CoWO<sub>6</sub> at 100 K. In: Phase transitions, 1991, vol. 31, n° 1-4, p. 45–54.
Main files (1)
Article (Published version)
  • PID : unige:31428
ISSN of the journal0141-1594

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