Dielectric properties of sodium nitrite particles embedded into porous alumina

15th Russian Youth Conference on Physics and Astronomy

物理学;天文学

Alexeeva, N.O.^1

Pskov State University, Lenin square, 2, 180000 Pskov, Russia^1

关键词: Bulk ferroelectrics;    Dielectric studies;    Experimental conditions;    Porous alumina;    Porous anodic alumina template;    Sample preparation;    Sodium nitrite;    Two step anodization;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/461/1/012023/pdf
DOI  :  10.1088/1742-6596/461/1/012023

学科分类：天文学(综合)

来源: IOP

【 摘 要 】

Porous anodic alumina templates were fabricated using a two-step anodization in oxalic and phosphoric acid solutions. Dielectric studies were carried out for ferroelectric sodium nitrite embedded into porous alumina. Phase transition temperature in sodium nitrite within porous alumina is shifted compared to the bulk ferroelectric Curie point. The sign of this shift depends on the experimental conditions of sample preparation.