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Monoclinic phase in the relaxor-based piezoelectric/ferroelectric Pb (Mg1/3Nb2/3)O3-PbTiO3 system

  • Z. G. Ye
  • , B. Noheda
  • , M. Dong
  • , D. Cox
  • , G. Shirane
  • Simon Fraser University
  • Brookhaven National Laboratory

科研成果: 期刊稿件文章同行评审

374 引用 (Scopus)

摘要

A ferroelectric monoclinic phase of space group Cm (MA type) has been discovered in 0.65 Pb(Mg1/3Nb2/3)O3-0.35 PbTiO3 by means of high-resolution synchrotron x-ray diffraction. It appears at room temperature in a single crystal previously poled under an electric field of 43 kV/cm applied along the pseudocubic [001] direction, in the region of the phase diagram around the morphotropic phase boundary between the rhombohedral (R3m) and the tetragonal (P4mm) phases. The monoclinic phase has lattice parameters a = 5.692 Å, b = 5.679 Å, c = 4.050 Å, and β = 90.15°, with the bm axis oriented along the pseudocubic [110] direction. It is similar to the monoclinic phase observed in PbZr1-xTixO3, but different from that recently found in Pb(Zn1/3Nb2/3)O3-PbTiO3, which is of space group Pm (M c type).

源语言英语
文章编号184114
页(从-至)1841141-1841145
页数5
期刊Physical Review B - Condensed Matter and Materials Physics
64
18
出版状态已出版 - 1 11月 2001
已对外发布

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