Evolution of NaNO2 in porous matrices

C. Tien, E. V. Charnaya, S. V. Baryshnikov, M. K. Lee, S. Y. Sun, D. Michel, W. Böhlmann

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)


NMR and dielectric studies of NaNO2 loaded into an SBA-15 mesoporous matrix are reported. The spin-lattice relaxation rate and the 23Na NMR line shift, as well as the permittivity, were measured within a broad temperature interval including the ferroelectric phase transition in NaNO2. The phase transition temperature of sodium nitrite in as-prepared samples was shown to differ substantially from that characteristic of a bulk crystal. The permittivity grows strongly in the vicinity of the phase transition. Heating a sample causes the properties of NaNO2 embedded in pores to gradually approach those of bulk crystals.

Original languageEnglish
Pages (from-to)2301-2305
Number of pages5
JournalPhysics of the Solid State
Issue number12
Publication statusPublished - 2004

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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