Dielectric parameters of mesoporous sieves filled with NaNO2

Autor:	S. V. Baryshnikov, Cheng Tien, N. P. Andriyanova, E. V. Stukova, Dieter Michel, E. V. Charnaya
Rok vydání:	2007
Předmět:	Permittivity Condensed Matter::Materials Science Materials science Electrical resistivity and conductivity Composite number Relaxation (physics) Dielectric Conductivity Composite material Condensed Matter Physics Mesoporous material Ferroelectricity Electronic Optical and Magnetic Materials
Zdroj:	Physics of the Solid State. 49:791-795
ISSN:	1090-6460 1063-7834
DOI:	10.1134/s1063783407040324
Popis:	This paper reports on a dielectric study of MCM-41 molecular sieves with cellular channels of different sizes filled with the NaNO2 ferroelectric. The temperature dependences of the permittivity and electrical conductivity of sodium nitrite in cellular channels are calculated from experimental data on the permittivity and electrical conductivity of the composite. The calculations are performed using the relationships obtained for the hexagonal matrix with parallel cylindrical inclusions within pores. The observed increase in the conductivity of sodium nitrite in confined geometry at high temperatures is attributed to partial melting. It is shown that the increase in the permittivity of the composite is caused by Maxwell-Wagner relaxation processes.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::298d1b44d4ae021c3383d1bcfb0e635b https://doi.org/10.1134/s1063783407040324 Zobrazit plný text záznamu Full text from SpringerLink