Dielectric and NMR studies of nanoporous matrices loaded with sodium nitrite

S. V. Baryshnikov, E. V. Stukova, E. V. Charnaya, C. Tien, Min-Kai Lee, W. Böhlmann, D. Michel

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

NMR and dielectric studies have been performed on NaNO2 loaded in mesoporous matrices of MCM-41 and SBA-15 with pore sizes of 20, 37, and 52 Å. The spin-lattice relaxation rate and 23Na NMR line shape, as well as the complex impedance, were measured within a broad temperature interval including the ferroelectric phase transition in bulk NaNO2. Two different phases of sodium nitrite, the crystalline and melt phases, are shown to coexist under conditions of a restricted geometry. The crystalline phase undergoes a ferroelectric phase transition. The melt fraction increases with temperature. The existence of two phases accounts for all experimental data on NaNO2 under conditions of a restricted geometry.

Original languageEnglish
Pages (from-to)593-599
Number of pages7
JournalPhysics of the Solid State
Volume48
Issue number3
DOIs
Publication statusPublished - 2006 Mar 1

Fingerprint

Sodium Nitrite
nitrites
Ferroelectric materials
Phase transitions
Sodium
Nuclear magnetic resonance
sodium
Crystalline materials
nuclear magnetic resonance
Spin-lattice relaxation
Geometry
Multicarrier modulation
matrices
geometry
spin-lattice relaxation
Pore size
line shape
impedance
intervals
porosity

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Baryshnikov, S. V., Stukova, E. V., Charnaya, E. V., Tien, C., Lee, M-K., Böhlmann, W., & Michel, D. (2006). Dielectric and NMR studies of nanoporous matrices loaded with sodium nitrite. Physics of the Solid State, 48(3), 593-599. https://doi.org/10.1134/S1063783406030292
Baryshnikov, S. V. ; Stukova, E. V. ; Charnaya, E. V. ; Tien, C. ; Lee, Min-Kai ; Böhlmann, W. ; Michel, D. / Dielectric and NMR studies of nanoporous matrices loaded with sodium nitrite. In: Physics of the Solid State. 2006 ; Vol. 48, No. 3. pp. 593-599.
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Baryshnikov, SV, Stukova, EV, Charnaya, EV, Tien, C, Lee, M-K, Böhlmann, W & Michel, D 2006, 'Dielectric and NMR studies of nanoporous matrices loaded with sodium nitrite', Physics of the Solid State, vol. 48, no. 3, pp. 593-599. https://doi.org/10.1134/S1063783406030292

Dielectric and NMR studies of nanoporous matrices loaded with sodium nitrite. / Baryshnikov, S. V.; Stukova, E. V.; Charnaya, E. V.; Tien, C.; Lee, Min-Kai; Böhlmann, W.; Michel, D.

In: Physics of the Solid State, Vol. 48, No. 3, 01.03.2006, p. 593-599.

Research output: Contribution to journalArticle

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