Mechanism of ferroelectric phase transition in ultra-dispersed sodium nitrite particles
A mechanism of the ferroelectric phase transition in nanocomposite materials based on porous glasses with the average pore diameter of 7 nm with embedded sodium nitrite has been discussed. The results of analysis of temperature evolution of structure, thermal vibrations of ions, and interatomic dist...
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Published in | Ferroelectrics Vol. 575; no. 1; pp. 75 - 83 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
Philadelphia
Taylor & Francis
12.05.2021
Taylor & Francis Ltd |
Subjects | |
Online Access | Get full text |
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Summary: | A mechanism of the ferroelectric phase transition in nanocomposite materials based on porous glasses with the average pore diameter of 7 nm with embedded sodium nitrite has been discussed. The results of analysis of temperature evolution of structure, thermal vibrations of ions, and interatomic distances are presented for these nanocomposites. It is shown that the thermal vibrations play the important role in a modification of ferroelectric phase transition from the first order, characterizing bulk compound, to the second order in ultra-dispersed sodium nitrite nanoparticles. |
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ISSN: | 0015-0193 1563-5112 |
DOI: | 10.1080/00150193.2021.1888229 |