期刊
PHYSICAL REVIEW LETTERS
卷 85, 期 24, 页码 5210-5213出版社
AMERICAN PHYSICAL SOC
DOI: 10.1103/PhysRevLett.85.5210
关键词
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Microscopic phase segregation by chemical doping and resultant anomalous dielectric response have been investigated for tetrathiafulvalene-p-chloranil complex doped with trichloro-p-benzoquinone (QCl(3)). Beyond a critical QCl(3) content, the system shows a behavior of relaxer ferroelectrics, as characterized by strong frequency dispersion and a rounded peak shape of gigantic dielectric susceptibility. The relaxor phase arises from one-dimensional ferroelectricity. as evidenced by a diffuse x-ray scattering, in which interchain ferroelectric coupling associated with neutral-ionic transition is interrupted by impurity-generated neutral microclusters.
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