Neutron diffraction study of NaNO2 ferroelectric nanowires

✍ Scribed by S Borisov; T Hansen; Yu Kumzerov; A Naberezhnov; V Simkin; O Smirnov; A Sotnikov; M Tovar; S Vakhrushev

• Publisher: Elsevier Science
• Year: 2004
• Tongue: English
• Weight: 191 KB
• Volume: 350
• Category: Article
• ISSN: 0921-4526
• DOI: 10.1016/j.physb.2004.03.304

✦ Synopsis

For the first time the temperature evolution of the structure of ferroelectric nanowires of NaNO 2 was studied by neutron diffraction from room temperature up to melting, i.e. in ferro-and paraelectric phases. Samples were produced in natural chrysotile asbestos with average channel diameter 671.5 nm. It is demonstrated that in the ferroelectric phase the structure is consistent with the bulk but is strongly textured. The temperature dependence of order parameter in the ferroelectric phase is determined for the confined sodium nitrite. It is shown that this dependence follows a power law with T c =413.072.5 K and b=0.3470.05, and differs from the same for the bulk material.