Dielectric Properties of CaCu3Ti4O12Ceramic Thin Films

Autor:	Marija Kosec, Brigita Kužnik, Barbara Malič, Andreja Eršte, Vid Bobnar
Rok vydání:	2011
Předmět:	Permittivity Materials science Ceramic thin films Dielectric Atmospheric temperature range Condensed Matter Physics Microstructure Electronic Optical and Magnetic Materials visual_art visual_art.visual_art_medium Grain boundary Ceramic Thin film Composite material
Zdroj:	Ferroelectrics. 419:14-19
ISSN:	1563-5112 0015-0193
DOI:	10.1080/00150193.2011.594405
Popis:	In CaCu3Ti4O12 (CCTO), the ceramic material with the highest dielectric permittivity ever reported in a broad frequency and temperature range, the origin of such high permittivity has been attributed to ‘electrical’ heterogeneities in the microstructure. Dielectric investigations of CCTO ceramic thin films, performed in a broad temperature and frequency range, and the analysis in terms of the equivalent circle reveal that (i) each of the two constituents, insulating grain boundaries and semiconducting bulk grains, individually determines the dielectric behaviour of CCTO and (ii) manipulating the conditions under which CCTO ceramic thin films are prepared enables control of their dielectric properties.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::36d843064a607ef6b6dd432bef19db3e https://doi.org/10.1080/00150193.2011.594405 Zobrazit plný text záznamu