Ground state of the relaxor ferroelectric Pb(Zn1/3Nb2/3)O-3

GY Xu*, Z Zhong, Y Bing, ZG Ye, C Stock, G Shirane

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

High energy x-ray diffraction measurements on Pb(Zn1/3Nb2/3)O-3 (PZN) single crystals show that the system does not have a rhombohedral symmetry at room temperature as previously believed. The phase (X) in the bulk of the crystal gives Bragg peaks similar to that of a nearly cubic lattice with a slight tetragonal distortion. The Bragg profile remains sharp with no evidence of size broadening due to the polar microcrystals. However, in our preliminary studies of the skin, we have found the expected rhombohedral (R) phase as a surface state. On the other hand, studies on an electric-field poled PZN single crystal clearly indicate a rhombohedral phase at room temperature.

Original languageEnglish
Article number104102
Number of pages5
JournalPhysical review B
Volume67
Issue number10
DOIs
Publication statusPublished - 1 Mar 2003

Keywords / Materials (for Non-textual outputs)

  • SINGLE-CRYSTALS
  • PHASE-DIAGRAM
  • NEUTRON-SCATTERING
  • GLASSY
  • PB(MG1/3NB2/3)O-3
  • TRANSITIONS
  • DIFFRACTION
  • BEHAVIOR
  • SYMMETRY
  • SYSTEMS

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