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Dynamic structural form-factor of quasi-one-dimensional ferroelectrics with random impurities

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We consider a one-dimensional model of displacive structural phase transitions with “random temperature”-type impurities. The modification to the central peak is calculated. It is shown that random-temperature impurities lead to a divergence in the central peak intensity. We find good agreement between our results and the experimental temperature dependence of the central peak.

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Translated from Izvestiya Vysshikh Uchebnikh Zavedenii, Fizika, No. 4, pp. 57–62, April, 1988.

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Abdullaev, F.K., Abdumalikov, A.A. & Umarov, B.A. Dynamic structural form-factor of quasi-one-dimensional ferroelectrics with random impurities. Soviet Physics Journal 31, 307–311 (1988). https://doi.org/10.1007/BF00892640

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  • Phase Transition
  • Structural Phase
  • Experimental Temperature
  • Central Peak
  • Structural Phase Transition