The effect of matrix on the ferroelectric phase transition in the nanocomposites NaNO2 + SBA-15 and NaNO2+3D-SBA-15

The temperature evolution of crystal structure and ferroelectric order parameter η(T) in nanocomposite materials "SBA-15 + NaNO 2 " have been studied by neutron diffraction. The large (∼15 K) temperature hysteresis in dependences of η(T) on heating and on cooling has been observed. It is s...

Full description

Saved in:
Bibliographic Details
Published inFerroelectrics Vol. 567; no. 1; pp. 61 - 66
Main Authors Alekseeva, Olga A., Naberezhnov, Aleksandr A., Stukova, Elena V., Novikova, Svetlana A., Sumnikov, Sergey V.
Format Journal Article
LanguageEnglish
Published Philadelphia Taylor & Francis 25.10.2020
Taylor & Francis Ltd
Subjects
Crystal structure
Ferroelectric materials
ferroelectric nanocomposites
Ferroelectricity
Heating
Nanocomposites
Neutron diffraction
Order parameters
phase transition
Phase transitions
SBA-15
Sodium nitrite
Temperature
Online AccessGet full text

Cover

More Information
Summary:The temperature evolution of crystal structure and ferroelectric order parameter η(T) in nanocomposite materials "SBA-15 + NaNO 2 " have been studied by neutron diffraction. The large (∼15 K) temperature hysteresis in dependences of η(T) on heating and on cooling has been observed. It is shown that a cause of this effect is an influence of elastic strains arising upon heating and leading to a change in the temperature of the ferroelectric phase transition.
ISSN:0015-0193
1563-5112
DOI:10.1080/00150193.2020.1791587