Dielectric properties of the nanoporous MCM-41 matrix filled with the (NH4)2SO4 ferroelectric

S. V. Baryshnikov, E. V. Charnaya, A. Yu Milinskii, A. Yu Goikhman, C. Tien, M. K. Lee, L. J. Chang

Research output: Contribution to journalArticle

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Abstract

Variations with temperature of the linear dielectric permittivity and amplitude of the third harmonic were studied for nanoporous MCM-41 matrices with 4.0-nm channel pores filled with the (NH4)2SO4 ferroelectric, in comparison with bulk ammonium sulfate. The measurements were performed upon heating and cooling in the temperature range from 100 K to room temperature. A noticeable shift to low temperatures (by approximately 25 K) for the ferroelectric phase transition in the MCM-41/(NH4)2SO4 nanocomposite as compared to bulk (NH4)2SO4 was revealed. The temperature hysteresis observed at the phase transition in the nanocomposite was approximately 2 K which is close to that in bulk ammonium sulfate. The significant decrease of the transition temperature in nanostructured ammonium sulfate agrees with the theoretical predictions based on the Landau and Ising models of the size effect on the ferroelectric phase transition in isolated small particles.

Original languageEnglish
Pages (from-to)1070-1073
Number of pages4
JournalPhysics of the Solid State
Volume55
Issue number5
DOIs
Publication statusPublished - 2013 May 1

Fingerprint

ammonium sulfates
Multicarrier modulation
Dielectric properties
Ferroelectric materials
dielectric properties
Ammonium Sulfate
nanocomposites
matrices
Phase transitions
Nanocomposites
Temperature
Ising model
temperature
transition temperature
hysteresis
permittivity
porosity
harmonics
cooling
heating

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Baryshnikov, S. V. ; Charnaya, E. V. ; Milinskii, A. Yu ; Goikhman, A. Yu ; Tien, C. ; Lee, M. K. ; Chang, L. J. / Dielectric properties of the nanoporous MCM-41 matrix filled with the (NH4)2SO4 ferroelectric. In: Physics of the Solid State. 2013 ; Vol. 55, No. 5. pp. 1070-1073.
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Dielectric properties of the nanoporous MCM-41 matrix filled with the (NH4)2SO4 ferroelectric. / Baryshnikov, S. V.; Charnaya, E. V.; Milinskii, A. Yu; Goikhman, A. Yu; Tien, C.; Lee, M. K.; Chang, L. J.

In: Physics of the Solid State, Vol. 55, No. 5, 01.05.2013, p. 1070-1073.

Research output: Contribution to journalArticle

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AU - Baryshnikov, S. V.

AU - Charnaya, E. V.

AU - Milinskii, A. Yu

AU - Goikhman, A. Yu

AU - Tien, C.

AU - Lee, M. K.

AU - Chang, L. J.

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