Dielectric studies of a α-LiIO3 crystals grown from neutral and alkaline solutions

Autor:	E. L. Lebedeva, A. L. Pirozerskiĭ, V. G. Zalesskiĭ, K. V. Filippov, E. V. Charnaya
Rok vydání:	2009
Předmět:	Permittivity Materials science Solid-state physics Analytical chemistry Ionic bonding Lithium iodate Activation energy Dielectric Condensed Matter Physics Electronic Optical and Magnetic Materials Ion chemistry.chemical_compound Nuclear magnetic resonance chemistry Relaxation (physics)
Zdroj:	Physics of the Solid State. 51:708-713
ISSN:	1090-6460 1063-7834
Popis:	The dielectric properties of lithium iodate crystals of the hexagonal modification grown from solutions with pH = 6.2, 7.1, and 11.0 in the frequency range from 25 Hz to 1 MHz at temperatures of 290–420 K were investigated. The temperature dependence of the imaginary part of the permittivity was found to exhibit clearly pronounced relaxation peaks originating from ionic mobility. The shift in the position of the relaxation maxima was used to calculate the activation energy and attempt frequency for mobile ions. The Cole-Cole diagrams revealed the existence of a spectrum of relaxation times. The presence of the specific feature in the ionic mobility of lithium iodate crystals grown from solutions with pH ∼ 7 was confirmed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::61452770439c6e9759d69508c3e891b9 https://doi.org/10.1134/s106378340904009x Zobrazit plný text záznamu Full text from SpringerLink