期刊
PHYSICAL REVIEW LETTERS
卷 109, 期 9, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.109.097603
关键词
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资金
- Federal Program Research and Development on High-Priority Directions of Improvement of Russia's Scientific and Technological Complex
- St.-Petersburg government
- RFBR [11-02-00687-a]
- Czech Science Foundation [GACR P204/10/0616]
- U.S. Office of Naval Research [N00014-06-1-0166, N00014-11-1-0552]
- Natural Sciences and Engineering Research Council of Canada
Complementary diffuse and inelastic synchrotron x-ray scattering measurements of lead zirconate-titanate single crystals with composition near the morphotropic phase boundary (x = 0.475) are reported. In the temperature range 293 K < T < 400 K a highly anisotropic quasielastic diffuse scattering is observed. Above 400 K this scattering disappears. Its main features can be reproduced by the model of inhomogeneous lattice deformations caused by inclusions of a tetragonal phase into a rhombohedral or monoclinic phase. This observation supports the idea that PZT at its morphotropic phase boundary is essentially structurally inhomogeneous.
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