St. Petersburg Polytechnical University Journal: Physics and Mathematics (Jun 2021)

DIELECTRIC PROPERTIES OF (R) -3-QUINUCLIDINOL IN A POROUS MATRIX Al2O3

  • Baryshnikov Sergey,
  • Milinskiy Alexey,
  • Stukova Elena,
  • Antonov Anton

DOI
https://doi.org/10.18721/JPM.14201
Journal volume & issue
Vol. 14, no. 2

Abstract

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The paper presents the results of studies of the linear and nonlinear dielectric properties of (R) -3-quinuclidinol embedded in porous aluminum oxide with a pore size of 300 nm, in comparison with the properties of bulk (R) -3-quinuclidinol. A decrease in the Curie temperature in the nanocomposite, both upon heating and cooling, in comparison with a bulk sample is revealed. A decrease in the phase transition temperature can be interpreted on the basis of known theoretical models for ferroelectric small particles.

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