Abstract
NMR and dielectric studies were carried out for ferroelectric NaNO2 embedded into porous alumina. 23Na spin-lattice relaxation and static lineshape were measured within a large temperature range covering the ferroelectric phase transition in bulk sodium nitrite till NaNO2 melting. The coexistence of the crystalline and melted states of confined sodium nitrite was observed above 400 K, gradual melting being over at about 510 K. The solid portion of confined sodium nitrite bore ferroelectricity with phase transition temperature higher than that in bulk NaNO2. Correlation time of molecular mobility in the melted fraction was found and activation enthalpy was estimated.
| Original language | English |
|---|---|
| Pages (from-to) | 2346-2351 |
| Number of pages | 6 |
| Journal | Physica Status Solidi (B) Basic Research |
| Volume | 246 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - 2009 Oct 1 |
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All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
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Ferroelectricity and gradual melting in NaNO2 particles confined within porous alumina. / Tien, Cheng; Charnaya, E. V.; Yu Podorozhkin, D.; Lee, M. K.; Baryshnikov, S. V.
In: Physica Status Solidi (B) Basic Research, Vol. 246, No. 10, 01.10.2009, p. 2346-2351.Research output: Contribution to journal › Article
TY - JOUR
T1 - Ferroelectricity and gradual melting in NaNO2 particles confined within porous alumina
AU - Tien, Cheng
AU - Charnaya, E. V.
AU - Yu Podorozhkin, D.
AU - Lee, M. K.
AU - Baryshnikov, S. V.
PY - 2009/10/1
Y1 - 2009/10/1
N2 - NMR and dielectric studies were carried out for ferroelectric NaNO2 embedded into porous alumina. 23Na spin-lattice relaxation and static lineshape were measured within a large temperature range covering the ferroelectric phase transition in bulk sodium nitrite till NaNO2 melting. The coexistence of the crystalline and melted states of confined sodium nitrite was observed above 400 K, gradual melting being over at about 510 K. The solid portion of confined sodium nitrite bore ferroelectricity with phase transition temperature higher than that in bulk NaNO2. Correlation time of molecular mobility in the melted fraction was found and activation enthalpy was estimated.
AB - NMR and dielectric studies were carried out for ferroelectric NaNO2 embedded into porous alumina. 23Na spin-lattice relaxation and static lineshape were measured within a large temperature range covering the ferroelectric phase transition in bulk sodium nitrite till NaNO2 melting. The coexistence of the crystalline and melted states of confined sodium nitrite was observed above 400 K, gradual melting being over at about 510 K. The solid portion of confined sodium nitrite bore ferroelectricity with phase transition temperature higher than that in bulk NaNO2. Correlation time of molecular mobility in the melted fraction was found and activation enthalpy was estimated.
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U2 - 10.1002/pssb.200945117
DO - 10.1002/pssb.200945117
M3 - Article
AN - SCOPUS:76849098179
VL - 246
SP - 2346
EP - 2351
JO - Physica Status Solidi (B): Basic Research
JF - Physica Status Solidi (B): Basic Research
SN - 0370-1972
IS - 10
ER -